RT Journal Article SR Electronic T1 Bronchodilators and bronchial hyperresponsiveness. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 190 OP 191 DO 10.1136/thx.49.2.190 VO 49 IS 2 A1 D R Taylor A1 M R Sears YR 1994 UL http://thorax.bmj.com/content/49/2/190.1.abstract AB