RT Journal Article SR Electronic T1 Opponents stymie fight against polio in Nigeria JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 891 OP 891 DO 10.1503/cmaj.081416 VO 179 IS 9 A1 Wakabi, Wairagala YR 2008 UL http://www.cmaj.ca/content/179/9/891.abstract