1. Department of Medicine, Hino Municipal Hospital, Tokyo 191‑0062, Japan
2. Department of Neurosurgery, Hino Municipal Hospital, Tokyo 191‑0062, Japan
3. Department of Respiratory Medicine, Toranomon Hospital Kajigaya, Kawasaki‑shi, Kanagawa 213‑8587, Japan
4. Department of Diagnostic Pathology, Hino Municipal Hospital, Tokyo 191‑0062, Japan