title: Severe group A streptococcal disease--Toronto, Ontario.
authors.affiliation: Departments of Microbiology and Medicine, Mount Sinai Hospital, University of Toronto, Ontario.
authors.forename: B
authors.initials: B
authors.lastname: Demers
authors.forename: A E
authors.initials: AE
authors.lastname: Simor
authors.forename: H
authors.initials: H
authors.lastname: Vellend
authors.forename: D E
authors.initials: DE
authors.lastname: Low
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009864:Ontario / Q000453:epidemiology; D013290:Streptococcal Infections / Q000453:epidemiology* / Q000473:pathology; D013297:Streptococcus pyogenes