RT Journal Article SR Electronic T1 Increase in poliomyelitis cases in Nigeria JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 930 OP 930 DO 10.1503/cmaj.081265 VO 179 IS 9 A1 Shalini Desai MD A1 Louise Pelletier MD A1 Michael Garner, MSc A1 John Spika MD YR 2008 UL http://www.cmaj.ca/content/179/9/930.abstract