Department of Otolaryngology, Osaka University, School of Medicine, Suita-city, Osaka, Japan
Osaka University Hospital, Suita, Osaka, Japan
National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Osaka, Japan
Osaka Prefectural Medical Center for Respiratory and Allergic Diseases, Habikino, Osaka, Japan
Osaka Hospital, Anti-Tuberculosis Association, Osaka Branch, Neyagawa, Osaka, Japan