Authors: Caitlin Pepperell; Neil Rau; Sigmund Krajden; Ralph Kern; Atul Humar; Barbara Mederski; Andrew Simor; Donald E Low; Allison McGeer; Tony Mazzulli; Jodie Burton; Cheryl Jaigobin; Margaret Fearon; Harvey Artsob; Michael A Drebot; William Halliday; James Brunton Journal: CMAJ Date: 2003-05-27 Impact factor: 8.262