Buxton Jane A, Dawar Meenakshi, Wheat L Joseph, Black William A, Ames Nelson G, Mugford Marcella, Patrick David M
Federal Field Epidemiology Training Program, Laboratory Centre for Disease Control, Health Canada, Ottawa, Ontario, Canada.
J Travel Med. 2002 Jan-Feb;9(1):48-50. doi: 10.2310/7060.2002.22444.