TY - JOUR AU - Buhl, R; Derom, E; Bjermer, L; Grönke, L; Voss, F; Fležar, M TI - Tiotropium + olodaterol in patients with moderate to severe COPD with chronic bronchitis and/or emphysema SN - 0934-8387 SN - 1438-8790 PY - 2017 JO - Pneumologie JF - Pneumologie LA - DE VL - 71 IS - S 01 SP - P160 DA - 2017/02/23 PB - Georg Thieme Verlag KG DO - 10.1055/s-0037-1598308 UR - http://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0037-1598308 ER -