Study Search Results Your query returned 6 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2005 (ICPSR 24901) Yi, Zeng; Vaupel, James W.; Zhenyu, Xiao; et al. 2. Danish 1905 Cohort Study, 1998 (ICPSR 3960) University of Southern Denmark. Institute of Public Health; Duke University 3. The Irish Longitudinal Study on Ageing (TILDA), 2009-2011 (ICPSR 34315) Kenny, Rose Anne 4. Longitudinal Study of Aging Danish Twins, 1995 (ICPSR 21041) Christensen, Kaare; Vaupel, James W. 5. The Survey of Health, Ageing and Retirement in Europe (SHARE) -- Israel, 2005-2006 (ICPSR 22160) Litwin, Howard 6. Survey of Midlife Development in Japan (MIDJA), April-September 2008 (ICPSR 30822) Ryff, Carol D.; Kitayam, Shinobu; Karasawa, Mayumi; et al.