(Q34998330)
Statements
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Internet versus mailed questionnaires: a controlled comparison (2). (English)
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Gordon H Guyatt
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Mohit Bhandari
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P J Devereaux
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Marc F Swiontkowski
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Pam Leece
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Sheila Sprague
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Emil H Schemitsch
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29 October 2004
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6
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4
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e39
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Identifiers
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