RT Journal Article SR Electronic T1 Treatment of asthma during pregnancy: more solid evidence needed JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 944 OP 945 DO 10.1136/thx.2008.104463 VO 63 IS 11 A1 Mario Cazzola A1 Maria Gabriella Matera YR 2008 UL http://thorax.bmj.com/content/63/11/944.abstract AB