RT Journal Article SR Electronic T1 Tips for learners of evidence-based medicine: 5. The effect of spectrum of disease on the performance of diagnostic tests JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 385 OP 390 DO 10.1503/cmaj.1031666 VO 173 IS 4 A1 Victor M. Montori A1 Peter Wyer A1 Thomas B. Newman A1 Sheri Keitz A1 Gordon Guyatt A1 for The Evidence-Based Medicine Teaching Tips Working Group YR 2005 UL http://www.cmaj.ca/content/173/4/385.abstract