TY - JOUR T1 - Management of people exposed to pertussis and control of pertussis outbreaks JF - Canadian Medical Association Journal JO - CMAJ SP - 638 LP - 638 VL - 144 IS - 6 AU - G. Clarkson Y1 - 1991/03/15 UR - http://www.cmaj.ca/content/144/6/638.abstract ER -