Improving response rate to mailed questionnaires.
Gordon
S E
SE
Lienhard School of Nursing, Pace University, Pleasantville, NY.
Stokes
S A
SA
D000368:Aged; D003299:Cooperative Behavior; D006801:Humans; D015399:Nursing Research; D011177:Postal Service; D011795:Surveys and Questionnaires