Diagnosis and management of asthma, COPD and asthma‐COPD overlap among primary care physicians and respiratory/allergy specialists: A global survey. - Jenkins, Christine; FitzGerald, J. Mark; Martinez, Fernando J.; Postma, Dirkje S.; Rennard, Stephen; Molen, Thys; Gardev, Asparuh; Genofre, Eduardo; Calverley, Peter (Clinical Respiratory Journal, 2019)