RT Journal Article SR Electronic T1 Tianjin chemical clean-up after explosion JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E404 OP E404 DO 10.1503/cmaj.109-5133 VO 187 IS 13 A1 Fangliang Xu A1 Joseph Paul Webb YR 2015 UL http://www.cmaj.ca/content/187/13/E404.abstract