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Journal of Medical Internet Research, Journal of Medical Internet Research, 3(19), p. e58

DOI: 10.2196/jmir.6716

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Costs and Efficiency of Online and Offline Recruitment Methods: A Web-Based Cohort Study

Journal article published in 2017 by Tina Christensen ORCID, Anders H. Riis ORCID, Elizabeth E. Hatch ORCID, Lauren A. Wise ORCID, Marie G. Nielsen ORCID, Kenneth J. Rothman ORCID, Henrik Toft Sørensen ORCID, Ellen M. Mikkelsen ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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