Study Search Results Your query returned 2 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: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. Bureau of Health Professions Area Resource File, 1940-1990: [United States] (ICPSR 9075) United States Department of Health and Human Services. Health Resources and Services Administration. Bureau of Health Professions 2. National Study of Internal Medicine, Physician Practice Study, Phase III, 1981 (ICPSR 8301) Schleiter, Mary Kay; Tarlov, Alvin R.