Search Results Use the search box below to revise your search, or start a new search. Studies (4) Variables Publications Your query returned 4 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Danish 1905 Cohort Study, 1998 (ICPSR 3960) Christensen, Kaare; Duke University 2. Hispanic Established Populations for the Epidemiologic Study of the Elderly (HEPESE) Wave 7, 2010-2011 [Arizona, California, Colorado, New Mexico, and Texas] (ICPSR 36537) Markides, Kyriakos; Chen, Nai-Wei; Angel, Ronald; et al. 3. Medicare Health Outcomes Survey (HOS), 1998-2014 (ICPSR 23380) United States Department of Health and Human Services. Centers for Medicare and Medicaid Services 4. National Academy of Sciences-National Research Council Twin Registry (NAS-NRC Twin Registry), 1958-2013 [RESTRICTED] (ICPSR 36234) Gatz, Margaret; Butler, David A.