Clinical characteristics of the overlap syndrome of asthma and COPD in older adults
Etsuko Tagaya, Saori Kirishi, Ishii Masanobu, Kikuchi Ryota, Akaba Tomohiro, Yuri Shimizu, Kiyoshi Takeyama, Mitsuko Kondo, Jun Tamaoki
European Respiratory Journal 2014 44: P1761; DOI: