The effect of timing of incentive payments on response rates for cohort study telephone interviews in primary care setting with cost-minimization analysis, a randomized controlled trial
Crossref DOI link: https://doi.org/10.1186/s12874-015-0073-3
Published Online: 2015-10-06
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Chin, Weng-Yee
Choi, Edmond PH
Lam, Cindy LK
License valid from 2015-10-06
