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Tweetations for "Internet Versus Mailed Questionnaires: A Randomized Comparison (2)"

Pam Leece, Mohit Bhandari, Sheila Sprague, Marc F Swiontkowski, Emil H Schemitsch, Paul Tornetta, PJ Devereaux, Gordon H Guyatt
J Med Internet Res 2004 (Sep 24); 6(3):e30 

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