Study Search Results Your query returned 3 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. National Health Interview Survey, 1985 (ICPSR 8668) United States Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Health Statistics 2. Resources for Enhancing Alzheimer's Caregiver Health, 1996-2001, Baseline and Follow-Up Data (ICPSR 3678) Schulz, Richard, et al. 3. Resources for Enhancing Alzheimer's Caregiver Health (REACH II), 2001-2004 (ICPSR 4354) Schulz, Richard; Burgio, Louis; Stevens, Alan B.; et al.