TY - JOUR T1 - Extrapolation warning JF - Canadian Medical Association Journal JO - CMAJ SP - E1151 LP - E1151 DO - 10.1503/cmaj.733233 VL - 189 IS - 36 AU - Christina Quinlan Y1 - 2017/09/11 UR - http://www.cmaj.ca/content/189/36/E1151.abstract ER -