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Ryan Trim

Title(s)Associate Professor, Psychiatry
SchoolHealth Sciences
Address9500 Gilman Drive #9116B
La Jolla CA 92093
Phone858-642-3693
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    Collapse Biography 
    Collapse Education and Training
    University of North Carolina, Chapel Hill, NCBS05/2000Psychology
    Arizona State University, Tempe, AZMA06/2002Clinical Psychology
    Arizona State University, Tempe, AZPhD06/2007Clinical Psychology

    Collapse Overview 
    Collapse Overview
    Broadly, I am interested in the impact of individual and environmental risk factors on substance use and related high-risk behaviors across the lifespan. My primary research interest focuses on the onset, maintenance, and escalation of substance use in adolescence and young adulthood from a developmental psychopathology perspective. My current NIAAA grant examines cognitive factors and brain functioning associated with various levels of alcohol-tobacco co-use involvement among young adults. Clinically, I serve as director of the Substance Abuse/Mental Illness (SAMI) Clinic at the VA San Diego where I oversee the development, application, and teaching of integrated treatment approaches for veterans with co-occurring psychiatric and substance use disorders. As such, I have an overarching passion for enhancing our understanding and treatment of complex substance use comorbidities both as a researcher and clinician.

    Collapse Research 
    Collapse Research Activities and Funding
    Motives for Simultaneous Alcohol and Tobacco Use in Young Adults
    NIH/NIAAA R21AA021822Sep 10, 2013 - Aug 31, 2015
    Role: Principal Investigator

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    Collapse Featured Publications

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Does exposure exacerbate symptoms in veterans with PTSD and alcohol use disorder? Psychol Trauma. 2020 Jul 16. Tripp JC, Haller M, Trim RS, Straus E, Bryan CJ, Davis BC, Lyons R, Hamblen JL, Norman SB. PMID: 32673006.
      View in: PubMed   Mentions:    Fields:    
    2. Residual Symptoms of Posttraumatic Stress Disorder and Alcohol Use Disorder Following Integrated Exposure Treatment Versus Coping Skills Treatment. J Trauma Stress. 2020 Jun 18. Tripp JC, Angkaw A, Schnurr PP, Trim RS, Haller M, Davis BC, Norman SB. PMID: 32557843.
      View in: PubMed   Mentions:    Fields:    
    3. Comparing Exposure- and Coping Skills-Based Treatments on Trauma-Related Guilt in Veterans with Co-Occurring Alcohol Use and Posttraumatic Stress Disorders. J Trauma Stress. 2020 Jun 10. Capone C, Tripp JC, Trim RS, Davis BC, Haller M, Norman SB. PMID: 32521096.
      View in: PubMed   Mentions:    Fields:    
    4. Bidirectional relationship of posttraumatic stress disorder (PTSD) symptom severity and alcohol use over the course of integrated treatment. Psychol Addict Behav. 2020 Jun; 34(4):506-511. Tripp JC, Worley MJ, Straus E, Angkaw AC, Trim RS, Norman SB. PMID: 32105112.
      View in: PubMed   Mentions:    Fields:    
    5. Alcohol Use Disorder and Co-Occurring Mental Health Conditions. Alcohol Res. 2019; 40(1). Kwako LE, Patterson J, Salloum IM, Trim RS. PMID: 31942280.
      View in: PubMed   Mentions:    Fields:    
    6. Efficacy of Integrated Exposure Therapy vs Integrated Coping Skills Therapy for Comorbid Posttraumatic Stress Disorder and Alcohol Use Disorder: A Randomized Clinical Trial. JAMA Psychiatry. 2019 Apr 24. Norman SB, Trim R, Haller M, Davis BC, Myers US, Colvonen PJ, Blanes E, Lyons R, Siegel EY, Angkaw AC, Norman GJ, Mayes T. PMID: 31017639.
      View in: PubMed   Mentions: 2     Fields:    
    7. Real-time social stress response and subsequent alcohol use initiation among female adolescents. Psychol Addict Behav. 2019 May; 33(3):254-265. Cloutier RM, Blumenthal H, Trim RS, Douglas ME, Anderson KG. PMID: 30869921.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    8. Positive expectancies mediate the association between sensation seeking and marijuana outcomes in at-risk young adults: A test of the acquired preparedness model. Am J Addict. 2018 Jun 06. Curry I, Trim RS, Brown SA, Hopfer CJ, Stallings MC, Wall TL. PMID: 29873863.
      View in: PubMed   Mentions:    Fields:    
    9. Simultaneous alcohol & tobacco use expectancies in young adult co-users. Addict Behav. 2018 02; 77:96-99. Trim RS, Doran N. PMID: 28992581.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    10. Impulsivity Dimensions and Risky Sex Behaviors in an At-Risk Young Adult Sample. Arch Sex Behav. 2018 02; 47(2):529-536. Curry I, Luk JW, Trim RS, Hopfer CJ, Hewitt JK, Stallings MC, Brown SA, Wall TL. PMID: 28884246.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. Examining changes in negative mood regulation expectancies, posttraumatic stress disorder, depression, and substance use following integrated cognitive-behavioral therapy. Subst Abus. 2017 Oct-Dec; 38(4):468-472. Siegel EY, Haller M, Cui R, Trim RS, Tate SR, Norman SB. PMID: 28632462.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansCTClinical Trials
    12. Unique and interactive effects of impulsivity facets on reckless driving and driving under the influence in a high-risk young adult sample. Pers Individ Dif. 2017 Aug 01; 114:42-47. Luk JW, Trim RS, Karyadi KA, Curry I, Hopfer CJ, Hewitt JK, Stallings MC, Brown SA, Wall TL. PMID: 29038610.
      View in: PubMed   Mentions:
    13. Risky driving and sexual behaviors as developmental outcomes of co-occurring substance use and antisocial behavior. Drug Alcohol Depend. 2016 Dec 01; 169:19-25. Luk JW, Worley MJ, Winiger E, Trim RS, Hopfer CJ, Hewitt JK, Brown SA, Wall TL. PMID: 27750183.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    14. Examining Pretreatment Differences Between Veterans in Residential Versus Outpatient Treatment for Alcohol Use Disorder and Comorbid Combat-Related PTSD. J Dual Diagn. 2016 Jul-Dec; 12(3-4):282-289. Haller M, Colvonen PJ, Davis BC, Trim RS, Bogner R, Sevcik J, Norman SB. PMID: 27808661.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    15. Effect of adolescent substance use and antisocial behavior on the development of early adulthood depression. Psychiatry Res. 2016 Apr 30; 238:143-149. Choi TK, Worley MJ, Trim RS, Howard D, Brown SA, Hopfer CJ, Hewitt JK, Wall TL. PMID: 27086224.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    16. Integrated Cognitive Behavioral Therapy Versus Cognitive Processing Therapy for Adults With Depression, Substance Use Disorder, and Trauma. J Subst Abuse Treat. 2016 Mar; 62:38-48. Haller M, Norman SB, Cummins K, Trim RS, Xu X, Cui R, Allard CB, Brown SA, Tate SR. PMID: 26718130.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    17. Correlates of other tobacco use in a community sample of young adults. Addict Behav. 2015 Dec; 51:131-5. Doran N, Trim RS. PMID: 26255638.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    18. Maximizing the utility of a single site randomized controlled psychotherapy trial. Contemp Clin Trials. 2015 May; 42:244-51. Norman SB, Haller M, Spadoni AD, Drummond SP, Risbrough V, Hamblen JL, Trim RS, Blanes EX. PMID: 25933919.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    19. Trauma-related guilt: conceptual development and relationship with posttraumatic stress and depressive symptoms. J Trauma Stress. 2015 Apr; 28(2):134-41. Browne KC, Trim RS, Myers US, Norman SB. PMID: 25864504.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    20. Bivariate Trajectories of Substance Use and Antisocial Behavior: Associations with Emerging Adult Outcomes in a High-Risk Sample. Emerg Adulthood. 2015 Aug 01; 3(4):265-276. Trim RS, Worley MJ, Wall TL, Hopfer CJ, Crowley TJ, Hewitt JK, Brown SA. PMID: 26889401.
      View in: PubMed   Mentions:
    21. Bivariate trajectories of substance use and antisocial behavior: Associations with emerging adult outcomes in a high-risk sample. Emerging Adulthood. 2015; 4(3):265-276. View Publication.
    22. Self-efficacy and social networks after treatment for alcohol or drug dependence and major depression: disentangling person and time-level effects. Psychol Addict Behav. 2014 Dec; 28(4):1220-9. Worley MJ, Trim RS, Tate SR, Roesch SC, Myers MG, Brown SA. PMID: 25347018.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    23. The prospective effects of impulsivity on alcohol and tobacco use in a college sample. J Psychoactive Drugs. 2013 Nov-Dec; 45(5):379-85. Doran N, Trim RS. PMID: 24592663.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    24. Forebrain gene expression predicts deficits in sensorimotor gating after isolation rearing in male rats. Behav Brain Res. 2013 Nov 15; 257:118-28. Swerdlow NR, Light GA, Trim RS, Breier MR, Hines SR, Powell SB. PMID: 24076151.
      View in: PubMed   Mentions: 4     Fields:    Translation:Animals
    25. Predictors of initial and sustained remission from alcohol use disorders: findings from the 30-year follow-up of the San Diego Prospective Study. Alcohol Clin Exp Res. 2013 Aug; 37(8):1424-31. Trim RS, Schuckit MA, Smith TL. PMID: 23458300.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    26. Psychometrics of the Overall Anxiety Severity and Impairment Scale (OASIS) in a sample of women with and without trauma histories. Arch Womens Ment Health. 2013 Apr; 16(2):123-9. Norman SB, Allard CB, Trim RS, Thorp SR, Behrooznia M, Masino TT, Stein MB. PMID: 23296334.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    27. Sex differences in how a low sensitivity to alcohol relates to later heavy drinking. Drug Alcohol Rev. 2012 Nov; 31(7):871-80. Schuckit MA, Smith TL, Trim RS, Kuperman S, Kramer J, Hesselbrock V, Bucholz KK, Nurnberger JI, Hesselbrock M, Saunders G. PMID: 22708705.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    28. Fronto-temporal-mesolimbic gene expression and heritable differences in amphetamine-disrupted sensorimotor gating in rats. Psychopharmacology (Berl). 2012 Dec; 224(3):349-62. Swerdlow NR, Shilling PD, Breier M, Trim RS, Light GA, Marie RS. PMID: 22700037.
      View in: PubMed   Mentions: 9     Fields:    Translation:Animals
    29. A prospective study of the Acquired Preparedness Model: the effects of impulsivity and expectancies on smoking initiation in college students. Psychol Addict Behav. 2013 Sep; 27(3):714-22. Doran N, Khoddam R, Sanders PE, Schweizer CA, Trim RS, Myers MG. PMID: 22686965.
      View in: PubMed   Mentions: 27     Fields:    Translation:Humans
    30. High versus low level of response to alcohol: evidence of differential reactivity to emotional stimuli. Biol Psychiatry. 2012 Nov 15; 72(10):848-55. Paulus MP, Schuckit MA, Tapert SF, Tolentino NJ, Matthews SC, Smith TL, Trim RS, Hall SA, Simmons AN. PMID: 22608014.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    31. White matter integrity, substance use, and risk taking in adolescence. Psychol Addict Behav. 2013 Jun; 27(2):431-42. Jacobus J, Thayer RE, Trim RS, Bava S, Frank LR, Tapert SF. PMID: 22564204.
      View in: PubMed   Mentions: 31     Fields:    Translation:Humans
    32. Comorbid depression and substance use disorder: longitudinal associations between symptoms in a controlled trial. J Subst Abuse Treat. 2012 Oct; 43(3):291-302. Worley MJ, Trim RS, Roesch SC, Mrnak-Meyer J, Tate SR, Brown SA. PMID: 22406052.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    33. Comparison across two generations of prospective models of how the low level of response to alcohol affects alcohol outcomes. J Stud Alcohol Drugs. 2012 Mar; 73(2):195-204. Schuckit MA, Smith TL, Kalmijn J, Trim RS, Cesario E, Saunders G, Sanchez C, Campbell N. PMID: 22333327.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    34. fMRI differences between subjects with low and high responses to alcohol during a stop signal task. Alcohol Clin Exp Res. 2012 01; 36(1):130-40. Schuckit MA, Tapert S, Matthews SC, Paulus MP, Tolentino NJ, Smith TL, Trim RS, Hall S, Simmons A. PMID: 22003983.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    35. Thinking and drinking: alcohol-related cognitions across stages of adolescent alcohol involvement. Psychol Addict Behav. 2011 Sep; 25(3):415-25. Bekman NM, Anderson KG, Trim RS, Metrik J, Diulio AR, Myers MG, Brown SA. PMID: 21534645.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    36. Role of risk factors proximate to time of trauma in the course of PTSD and MDD symptoms following traumatic injury. J Trauma Stress. 2011 Aug; 24(4):390-8. Norman SB, Trim RS, Goldsmith AA, Dimsdale JE, Hoyt DB, Norman GJ, Stein MB. PMID: 21834085.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    37. A prospective evaluation of how a low level of response to alcohol predicts later heavy drinking and alcohol problems. Am J Drug Alcohol Abuse. 2011 Nov; 37(6):479-86. Schuckit MA, Smith TL, Trim RS, Allen RC, Fukukura T, Knight EE, Cesario EM, Kreikebaum SA. PMID: 21797810.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    38. Predictors of partying prior to bar attendance and subsequent BrAC. Addict Behav. 2011 Dec; 36(12):1341-3. Reed MB, Clapp JD, Weber M, Trim R, Lange J, Shillington AM. PMID: 21862231.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    39. Drinking plans and drinking outcomes: examining young adults' weekend drinking behavior. J Drug Educ. 2011; 41(3):253-70. Trim RS, Clapp JD, Reed MB, Shillington A, Thombs D. PMID: 22125921.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    40. Service utilization during and after outpatient treatment for comorbid substance use disorder and depression. J Subst Abuse Treat. 2010 Sep; 39(2):124-31. Worley MJ, Trim RS, Tate SR, Hall JE, Brown SA. PMID: 20598832.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    41. Acute ethanol effects on brain activation in low- and high-level responders to alcohol. Alcohol Clin Exp Res. 2010 Jul; 34(7):1162-70. Trim RS, Simmons AN, Tolentino NJ, Hall SA, Matthews SC, Robinson SK, Smith TL, Padula CB, Paulus MP, Tapert SF, Schuckit MA. PMID: 20477775.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    42. Comparing structural equation models that use different measures of the level of response to alcohol. Alcohol Clin Exp Res. 2010 May; 34(5):861-8. Schuckit MA, Smith TL, Trim RS, Tolentino NJ, Hall SA. PMID: 20201931.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    43. Predicting drinking onset with discrete-time survival analysis in offspring from the San Diego prospective study. Drug Alcohol Depend. 2010 Mar 01; 107(2-3):215-20. Trim RS, Schuckit MA, Smith TL. PMID: 19959300.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    44. Predictors of error in estimates of blood alcohol concentration: a replication. J Stud Alcohol Drugs. 2009 Sep; 70(5):683-8. Clapp JD, Min JW, Trim RS, Reed MB, Lange JE, Shillington AM, Croff JM. PMID: 19737492.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    45. The relationships of the level of response to alcohol and additional characteristics to alcohol use disorders across adulthood: a discrete-time survival analysis. Alcohol Clin Exp Res. 2009 Sep; 33(9):1562-70. Trim RS, Schuckit MA, Smith TL. PMID: 19485971.
      View in: PubMed   Mentions: 40     Fields:    Translation:Humans
    46. An evaluation of the full level of response to alcohol model of heavy drinking and problems in COGA offspring. J Stud Alcohol Drugs. 2009 May; 70(3):436-45. Schuckit MA, Smith TL, Danko GP, Trim R, Bucholz KK, Edenberg HJ, Hesselbrock V, Kramer JJ, Dick DM. PMID: 19371495.
      View in: PubMed   Mentions: 29     Fields:    Translation:Humans
    47. Blood alcohol concentrations among bar patrons: A multi-level study of drinking behavior. Drug Alcohol Depend. 2009 Jun 01; 102(1-3):41-8. Clapp JD, Reed MB, Min JW, Shillington AM, Croff JM, Holmes MR, Trim RS. PMID: 19250775.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    48. The overlap in predicting alcohol outcome for two measures of the level of response to alcohol. Alcohol Clin Exp Res. 2009 Mar; 33(3):563-9. Schuckit MA, Smith TL, Trim R, Fukukura T, Allen R. PMID: 19120060.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    49. The self-rating of the effects of alcohol questionnaire as a predictor of alcohol-related outcomes in 12-year-old subjects. Alcohol Alcohol. 2008 Nov-Dec; 43(6):641-6. Schuckit MA, Smith TL, Trim RS, Heron J, Horwood J, Davis J, Hibbeln J. PMID: 18845530.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    50. The performance of elements of a 'level of response to alcohol'-based model of drinking behaviors in 13-year-olds. Addiction. 2008 Nov; 103(11):1786-92. Schuckit MA, Smith TL, Trim R, Heron J, Horwood J, Davis JM, Hibbeln JR. PMID: 18778389.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    51. Neighborhood socioeconomic status effects on adolescent alcohol outcomes using growth models: exploring the role of parental alcoholism. J Stud Alcohol Drugs. 2008 Sep; 69(5):639-48. Trim RS, Chassin L. PMID: 18781238.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    52. Testing the level of response to alcohol-based model of heavy drinking and alcohol problems in offspring from the San Diego Prospective Study. J Stud Alcohol Drugs. 2008 Jul; 69(4):571-9. Schuckit MA, Smith TL, Trim R, Kreikebaum S, Hinga B, Allen R. PMID: 18612573.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    53. The prognostic implications of DSM-IV abuse criteria in drinking adolescents. Drug Alcohol Depend. 2008 Sep 01; 97(1-2):94-104. Schuckit MA, Danko GP, Smith TL, Bierut LJ, Bucholz KK, Edenberg HJ, Hesselbrock V, Kramer J, Nurnberger JI, Trim R, Allen R, Kreikebaum S, Hinga B. PMID: 18479842.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    54. Level of response to alcohol within the context of alcohol-related domains: an examination of longitudinal approaches assessing changes over time. Alcohol Clin Exp Res. 2008 Mar; 32(3):472-80. Trim RS, Schuckit MA, Smith TL. PMID: 18302725.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    55. Clinical implications of tolerance to alcohol in nondependent young drinkers. Am J Drug Alcohol Abuse. 2008; 34(2):133-49. Schuckit MA, Smith TL, Hesselbrock V, Bucholz KK, Bierut L, Edenberg H, Kramer J, Longacre E, Fukukura T, Kalmijn J, Danko GP, Trim R. PMID: 18293230.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    56. A comparison of factors associated with substance-induced versus independent depressions. J Stud Alcohol Drugs. 2007 Nov; 68(6):805-12. Schuckit MA, Smith TL, Danko GP, Pierson J, Trim R, Nurnberger JI, Kramer J, Kuperman S, Bierut LJ, Hesselbrock V. PMID: 17960298.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    57. Externalizing disorders in the offspring from the San Diego prospective study of alcoholism. J Psychiatr Res. 2008 Jul; 42(8):644-52. Schuckit MA, Smith TL, Pierson J, Trim R, Danko GP. PMID: 17765266.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    58. The relation between adolescent substance use and young adult internalizing symptoms: findings from a high-risk longitudinal sample. Psychol Addict Behav. 2007 Mar; 21(1):97-107. Trim RS, Meehan BT, King KM, Chassin L. PMID: 17385959.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    59. Substance use and academic outcomes: Synthesizing findings and future directions. Addiction. 2006 Dec; 101(12):1688-9. King KM, Meehan BT, Trim RS, Chassin L. PMID: 17156166.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    60. Marker or mediator? The effects of adolescent substance use on young adult educational attainment. Addiction. 2006 Dec; 101(12):1730-40. King KM, Meehan BT, Trim RS, Chassin L. PMID: 17156172.
      View in: PubMed   Mentions: 46     Fields:    Translation:Humans
    61. Sibling influence on alcohol use in a young adult, high-risk sample. J Stud Alcohol. 2006 May; 67(3):391-8. Trim RS, Leuthe E, Chassin L. PMID: 16608148.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    62. Drinking restraint, alcohol consumption and alcohol dependence among children of alcoholics. J Stud Alcohol. 2004 Jan; 65(1):122-5. Trim RS, Chassin L. PMID: 15000511.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
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