Issues in carrying out epidemiologic research in the elderly.
Kelsey
J L
JL
Division of Epidemiology, Columbia University School of Public Health, New York, NY.
O'Brien
L A
LA
Grisso
J A
JA
Hoffman
S
S
D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D004812:Epidemiologic Methods; D005260:Female; D006620:Hip Fractures / Q000453:epidemiology* / Q000208:ethnology; D006801:Humans; D007407:Interviews as Topic; D009519:New York City; D009735:Nursing Homes; D010349:Patient Compliance; D010414:Pennsylvania; D012107:Research Design; D011795:Surveys and Questionnaires