Study Search Results Your query returned 4 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. Mexican Health and Aging Study (MHAS) (ICPSR 142) Soldo, Beth J.; Wong, Rebecca; Palloni, Alberto; et al. 2. English Longitudinal Study of Ageing (ELSA) (ICPSR 139) National Centre for Social Research (NatCen); University College London; Institute for Fiscal Studies (IFS) 3. Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2005 (ICPSR 24901) Yi, Zeng; Vaupel, James W.; Zhenyu, Xiao; et al. 4. Victoria Longitudinal Study (ICPSR 117) Dixon, Roger A.