RT Journal Article SR Electronic T1 Emphysematous cystitis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E313 OP E313 DO 10.1503/cmaj.191288 VO 192 IS 12 A1 Po-Hsiang Liao A1 Ming-Shun Hsieh A1 Yen-Chia Chen YR 2020 UL http://www.cmaj.ca/content/192/12/E313.abstract