1. Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236‑0004, Japan
2. Division of Respirology, Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital, Yokohama, Kanagawa 236‑0051, Japan
3. Division of Surgery, Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital, Yokohama, Kanagawa 236‑0051, Japan
4. Division of Pathology, Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital, Yokohama, Kanagawa 236‑0051, Japan
5. Division of Radiology, Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital, Yokohama, Kanagawa 236‑0051, Japan