Improving participation rates by providing choice of participation mode: two randomized controlled trials
Crossref DOI link: https://doi.org/10.1186/s12874-015-0021-2
Published Online: 2015-04-02
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Heijmans, Naomi
van Lieshout, Jan
Wensing, Michel
License valid from 2015-04-02
Article History
Received: 22 August 2014
Accepted: 18 March 2015
First Online: 2 April 2015