RT Journal Article SR Electronic T1 Anitleukotrienes, asthma pathogenesis and the pharmaceutical industry JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 209 OP 210 VO 160 IS 2 A1 P. M. O'Byrne YR 1999 UL http://www.cmaj.ca/content/160/2/209.abstract AB