RT Journal Article SR Electronic T1 The severity of H1N1 JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 384 OP 384-a DO 10.1503/cmaj.110-2024 VO 182 IS 4 A1 Nevio Cimolai YR 2010 UL http://www.cmaj.ca/content/182/4/384.2.abstract