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Original Research
Comorbidities of patients in tiotropium clinical trials: comparison with observational studies of patients with chronic obstructive pulmonary disease
Marc Miravitlles1 Pneumology Department, Hospital Universitari Vall d’Hebron, Ciber de Enfermedades Respiratorias (CIBERES), Barcelona, SpainCorrespondence[email protected]
, David Price2 Academic Primary Care, Division of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
, Klaus F Rabe3 Department of Medicine, Christian-Albrechts-Universität zu Kiel (CAU), Großhansdorf, Germany;7 LungenClinic Grosshansdorf, Großhansdorf, Germany
, Hendrik Schmidt4 Global Biometrics and Clinical Applications, Boehringer Ingelheim Pharma GmbH and Co KG, Ingelheim am Rhein, Germany
, Norbert Metzdorf5 TA Respiratory Diseases, Boehringer Ingelheim Pharma GmbH and Co KG, Ingelheim am Rhein, Germany
& Bartolome Celli6 Pulmonary Division, Brigham and Women’s Hospital, Boston, MA, USA
Pages 549-564
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Published online: 16 Mar 2015
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