TY - JOUR T1 - Rational and irrational use of antibiotics JF - Canadian Medical Association Journal JO - CMAJ SP - 1347a LP - 1347 VL - 116 IS - 12 AU - H. R. Speirs Y1 - 1977/06/18 UR - http://www.cmaj.ca/content/116/12/1347a.abstract ER -