Study Search Results Your query returned 2 results. Series results are grouped under the most relevant study. You can ungroup series results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Mental Health Concerns of Gay and Bisexual Men Seeking Mental Health Services, 2000 [United States] (ICPSR 22121) Safren, Steven; Berg, Michael; Mimiaga, Matthew 2. National Comorbidity Survey: Adolescent Supplement (NCS-A), 2001-2004 (ICPSR 28581) Kessler, Ronald C.