TY - JOUR T1 - Interpretation of diagnostic data: 1. How to do it with pictures JF - Canadian Medical Association Journal JO - CMAJ SP - 429 LP - 432 VL - 129 IS - 5 AU - D. L. Sackett Y1 - 1983/09/01 UR - http://www.cmaj.ca/content/129/5/429.abstract ER -