A Randomised, Double-blind, Placebo-controlled, 12 Week Trial to Evaluate the Effect of Tiotropium Inhalation Capsules (Spiriva) on the Magnitude of Exercise, Measured Using an Accelerometer, in Patients With Chronic Obstructive Pulmonary Disease (COPD)

Hospital San Pedro de Alcántara, Cáceres

Boehringer Ingelheim Investigational Site, Berlin

Hospital Universitario Reína Sofía, Córdoba

Boehringer Ingelheim Investigational Site, Berlin

Boehringer Ingelheim Investigational Site, Rüdersdorf

Centro de Asistencia Primaria de Campdevanol, Campdevànol (Girona)

Pneumologisches Forschungsinstitut GmbH am Krankenhaus, Hamburg

Pneumologisches Forschungsinstitut GmbH, Großhansdorf

Hospital de la Princesa, Madrid

Hospital Universitario La Paz, Madrid

Hospital Universitario Príncipe de Asturias, Alcalá de Henares (Madrid)

Hospital Vírgen de la Victoria, Málaga

Allergomedic, Hanover

Klinik III für Innere Medizin/ Pneumologie, Cologne

Inamed Research GmbH & Co. KG, Gauting

Boehringer Ingelheim Investigational Site, Fürth

Krankenhaus Donaustauf, Donaustauf

1796 Summer Street, Halifax

Kingston General Hospital, Kingston

Respiratory/ Research Lab, Toronto

Montreal Chest Institute of the Royal Victoria Hospital, Montreal

Hopital Laval, Ste-Foy

Department of Respiratory Medicine, Saskatoon

Hospital Clinic i Provincial de Barcelona, Barcelona

Hospital General de Elche, Elche (Alicante)

Hospital Ntra. Sra. de Meritxell, Escaldes-Engordany

Centro de Asistencia Primaria de la Roca, La Roca Del Vallés (Barcelona)