Comparison of up-front cash cards and checks as incentives for participation in a clinician survey: a study within a trial.

Lydia E PaceYeonsoo S LeeNadine TungJada G HamiltonCamila GabrielSahitya C RajaColby JenkinsAnthony BraswellSusan M DomchekHeather SymeckoKelsey SpielmanBeth Y KarlanJenny LesterDaniella KamaraJeffrey LevinKelly MorganKenneth OffitJudy GarberNancy L Keating

Published in: BMC medical research methodology (2020)

ClinicalTrials.gov ( NCT03351803 ), November 24, 2017.

Keyphrases

phase iii
study protocol
physical activity
clinical trial
phase ii
smoking cessation
randomized controlled trial
open label