TY - JOUR T1 - A marvellous invention JF - Canadian Medical Association Journal JO - CMAJ SP - 1212 LP - 1212 DO - 10.1503/cmaj.051309 VL - 173 IS - 10 A2 - , Y1 - 2005/11/08 UR - http://www.cmaj.ca/content/173/10/1212.abstract ER -