Clinical Outcomes of Tiotropium Plus Fluticasone Propionate/Salmeterol Compared With Tiotropium for Chronic Obstructive Pulmonary Disease (COPD) in Korea

Soonchunhyang University Bucheon Hospital, Bucheon-si

Inje university Pusan Paik hospital, Busan

Chonbuk national university hospital, Chunbuk

Keimyung university dongsan medical center, Daegu

Kyungpook national university hospital, Daegu

Yeungnam University Hospital, Daegu

Hallym University scared heart hospital, Gyeonggi-do

Gachon University Gil Hospital, Inchon

Incheon St. Mary's Hospital, Inchon

Inha university Hospital, Inchon

Gyeongsang national university hospital, Jinju

Chungbuk national university hospital, Jungbuk

Chungnam National University Hospital, Jungnam

Asan Medical Center, Seoul

Boramae Medical Center, Seoul

Ewha womans university mokdong hospital, Seoul

Hanyang University Hospital, Seoul

Inje university Seoul Paik Hospital, Seoul

Kangdong Scared heart Hospital, Seoul

Kangnam St. Mary's Hospital, Seoul

Konkuk university hospital, Seoul

Korea University Guro Hospital, Seoul

Kyunghee university medical center, Seoul

Samsung medical center, Seoul

Seoul National University Hospital, Seoul

Severance Hospital, Seoul

Soonchunhyang University hospital, Seoul

St. Paul's Hospital, Seoul

Ajou university hospital, Suwon

Uijeongbu St. Mary's Hospital, Uijeongbu-si

Wonju Christian Hospital, Wŏnju

Kyunghee university east-west neo medical center, Seoul