RT Journal Article SR Electronic T1 Measures of reversibility in response to bronchodilators in chronic airflow obstruction. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 544 OP 544 DO 10.1136/thx.46.7.544-b VO 46 IS 7 A1 Packe, G E YR 1991 UL http://thorax.bmj.com/content/46/7/544.3.abstract AB