title: Randomised controlled trial: Uplifting results of tiotropium in moderate COPD (GOLD stage 2).
authors.affiliation: Department of Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, The Netherlands. h.a.m.kerstjens@int.umcg.nl
authors.forename: Huib A M
authors.initials: HA
authors.lastname: Kerstjens
authors.forename: N H T
authors.initials: NH
authors.lastname: Ten Hacken