RT Journal Article SR Electronic T1 Do smoking parents seek the best advice for their asthmatic children? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1 OP 1 DO 10.1136/thorax.56.1.1 VO 56 IS 1 A1 JAMES A R FRIEND YR 2001 UL http://thorax.bmj.com/content/56/1/1.abstract AB