A comparison of seven methods of recruiting older adults into an exercise study.
Topp
R
R
Indiana University School of Nursing, Indianapolis.
Bawell
K
K
D000329:Advertising; D000368:Aged; D002986:Clinical Trials as Topic; D003362:Cost-Benefit Analysis; D015444:Exercise; D005260:Female; D006293:Health Promotion / Q000191:economics* / Q000379:methods; D006801:Humans; D008297:Male