Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 3 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. Family Exchanges Study Wave 1 (ICPSR 36360) Fingerman, Karen 3. Survey of Midlife Development in Japan (MIDJA 2), May-October 2012 (ICPSR 36427) Ryff, Carol D.; Kitayama, Shinobu; Karasawa, Mayumi; et al.