Checking for interviewer bias in outcome assessment: a method for strengthening the design of prospective, randomised trials in surgery

Author： Koller M. Hoffmann S. Rothmund M. Lorenz W. Plaul U.

Publisher： Springer Publishing Company

ISSN： 1435-2443

Source： Langenbeck's Archives of Surgery, Vol.389, Iss.2, 2004-04, pp. : 92-96

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