TY - JOUR T1 - Research letters in CMAJ JF - Canadian Medical Association Journal JO - CMAJ SP - 825 LP - 825 VL - 160 IS - 6 AU - K. S. Joseph AU - J. Hoey Y1 - 1999/03/23 UR - http://www.cmaj.ca/content/160/6/825.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -