RT Journal Article SR Electronic T1 Nasal nitric oxide in man JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 947 OP 952 DO 10.1136/thx.54.10.947 VO 54 IS 10 A1 J O N Lundberg A1 E Weitzberg YR 1999 UL http://thorax.bmj.com/content/54/10/947.abstract AB