1. Department of Dermatology Tokyo Metropolitan Tama Medical Center 2‐8‐29 Musashidai Fuchu‐shi Tokyo 183‐8524 Japan
2. Department of Dermatology Tokyo Medical University 6‐7‐1 Nishishinjuku Shinjukuku Tokyo 160‐0023 Japan
3. Department of Respiratory Surgery Tokyo Metropolitan Tama Medical Center 2‐8‐29 Musashidai Fuchu‐shi Tokyo 183‐8524 Japan