TY - JOUR T1 - Surveillance of drug adverse reactions JF - Canadian Medical Association Journal JO - CMAJ SP - 1285b LP - 1285 VL - 106 IS - 12 AU - J. S. Campbell AU - I. W. Henderson Y1 - 1972/06/24 UR - http://www.cmaj.ca/content/106/12/1285b.abstract ER -