RT Journal Article SR Electronic T1 Nitric oxide, hypoxia, and superoxide: the good, the bad, and the ugly! JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 265 OP 267 DO 10.1136/thx.2004.038471 VO 60 IS 4 A1 Dweik, R A YR 2005 UL http://thorax.bmj.com/content/60/4/265.abstract AB