Study Search Results Your query returned 1 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance (?) Study Title/Investigator 1. Kaiser Permanente Study of the Oldest Old, 1971-1979 and 1980-1988: [California] (ICPSR 4219) Haan, Mary N.; Rice, Dorothy P.; Quesenberry, Charles P.; et al.