RT Journal Article SR Electronic T1 Emphysematous pyelitis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 698 OP 698 DO 10.1503/cmaj.091055 VO 182 IS 7 A1 Chia-Chun Chiang A1 Yuh-Shiun Jong A1 Wei-Jie Wang YR 2010 UL http://www.cmaj.ca/content/182/7/698.abstract AB