Department of Pneumology, La Paz University Hospital, Madrid, Spain
Francisco García-Río
Department of Pneumology, La Paz University Hospital, Madrid, Spain
Félix Del Campo
Department of Pneumology, Río Hortega Hospital, Valladolid University, Valladolid, Spain
Carlos Zamarrón
Department of Pneumology, Santiago de Compostela Hospital, Santiago de Compostela Universidad, A Coruña, Spain
Nikolaus C. Netzer
Hermann Buhl Institute for Hypoxia and Sleep Medicine Research, Research Program of the Paracelsus Medical University and Clinic Ghersburg for Geriatric Rehabilitation, Bad Aibling, Germany
