RT Journal Article SR Electronic T1 Massive “sweet” hydrothorax JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1883 OP 1883 DO 10.1503/cmaj.091464 VO 182 IS 17 A1 Po-Jen Yang A1 Tsan-Hsing Liu YR 2010 UL http://www.cmaj.ca/content/182/17/1883.abstract