Internet versus mailed questionnaires: a randomized comparison (2).
Leece P, Bhandari M, Sprague S, Swiontkowski MF, Schemitsch EH, Tornetta P, Devereaux PJ, Guyatt GH.
Leece P, et al. Among authors: schemitsch eh.
J Med Internet Res. 2004 Sep 24;6(3):e30. doi: 10.2196/jmir.6.3.e30.
J Med Internet Res. 2004.
PMID: 15471756
Free PMC article.
Corrected and republished.
Clinical Trial.