1. Department of Surgery, Moriguchi Keijinkai Hospital, Moriguchi, Osaka 570‑0021, Japan
2. Department of Pathology, Moriguchi Keijinkai Hospital, Moriguchi, Osaka 570‑0021, Japan
3. Department of Plastic Surgery, Moriguchi Keijinkai Hospital, Moriguchi, Osaka 570‑0021, Japan