RT Journal Article SR Electronic T1 Lack of clean water exacerbates cholera outbreak in Haiti JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E83 OP E84 DO 10.1503/cmaj.109-3764 VO 183 IS 2 A1 Paul Christopher Webster YR 2011 UL http://www.cmaj.ca/content/183/2/E83.abstract