Cost-effectiveness of follow-up contact for a postal survey: a randomised controlled trial.
Breen
Courtney L
CL
National Drug and Alcohol Research Centre, School of Public Health and Community Medicine, University of New South Wales, Sydney, NSW 2052. courtney.breen@unsw.edu.au
Shakeshaft
Anthony P
AP
Doran
Christopher M
CM
Sanson-Fisher
Rob W
RW
Mattick
Richard P
RP
D003362:Cost-Benefit Analysis; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D011177:Postal Service; D017010:Reminder Systems / Q000191:economics* / Q000592:standards; D011795:Surveys and Questionnaires / Q000191:economics*; D013689:Telephone