TY - JOUR T1 - Friday afternoon JF - Canadian Medical Association Journal JO - CMAJ SP - 172 LP - 173 DO - 10.1503/cmaj.050719 VL - 173 IS - 2 AU - Ronald Ruskin Y1 - 2005/07/19 UR - http://www.cmaj.ca/content/173/2/172.abstract ER -