Authors:
DELVALLE M
MORGENSTERN H
ROGSTAD TL
ALBRIGHT C
VICKREY BG
Citation: M. Delvalle et al., A RANDOMIZED TRIAL OF THE IMPACT OF CERTIFIED MAIL ON RESPONSE RATE TO A PHYSICIAN SURVEY, AND A COST-EFFECTIVENESS ANALYSIS, Evaluation & the health professions, 20(4), 1997, pp. 389-406