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Original Research
Seasonal variations in exacerbations and deaths in patients with COPD during the TIOSPIR® trial
Robert A Wise1 Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USACorrespondence[email protected]
, Peter MA Calverley2 Respiratory Medicine, University Hospital Aintree, Liverpool, UK
, Kerstine Carter3 Biostatistics, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
, Emmanuelle Clerisme-Beaty4 Clinical Development and Medical Affairs, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
, Norbert Metzdorf5 Clinical Development and Medical Affairs, Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
& Antonio Anzueto6 Department of Pulmonary Diseases and Critical Care Medicine, University of Texas Health Science Center and South Texas Veterans Health Care System, San Antonio, TX, USA
Pages 605-616
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Published online: 14 Feb 2018
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