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Improving response rate and quality of survey data with a scratch lottery ticket incentive

Frank Olsen*, Birgit Abelsen and Jan Abel. Olsen

BMC Medical Research Methodology 2012, 12:52  doi:10.1186/1471-2288-12-52

Pre-publication versions of this article and reviewers' reports

Original Submission - Version 1 Manuscript 13 May 2011
Reviewer's Report Ian Harris 20 Jun 2011
Reviewer's Report Eleanor Singer 27 Jun 2011
Resubmission - Version 2 Manuscript Author's comment 31 Aug 2011
Reviewer's Report Jonathan VanGeest 03 Feb 2012
Resubmission - Version 3 Manuscript Author's comment 04 Mar 2012
Editorial acceptance 11 Apr 2012
Published 19 Apr 2012