TY - JOUR T1 - The stethoscope as a postural aid JF - Canadian Medical Association Journal JO - CMAJ SP - 16 LP - 16 VL - 165 IS - 1 AU - Edward A. Petrie Y1 - 2001/07/10 UR - http://www.cmaj.ca/content/165/1/16.1.abstract ER -