RT Journal Article SR Electronic T1 Maternal history of miscarriages and measures of fertility in relation to childhood asthma JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 101 OP 102 DO 10.1136/thoraxjnl-2018-212598 VO 74 IS 2 A1 Peter G Gibson YR 2019 UL http://thorax.bmj.com/content/74/2/101.abstract AB