1. Department of Diagnostic Pathology, Toyooka Hospital, Toyooka, Hyogo 668‑8501, Japan
2. Department of Laboratory Medicine, Shizuoka Medical Center, Shimizu‑Cho, Shizuoka 411‑8611, Japan
3. Department of Plastic and Reconstructive Surgery, Toyooka Hospital, Toyooka, Hyogo 668‑8501, Japan
4. Department of Dermatology, Toyooka Hospital, Toyooka, Hyogo 668‑8501, Japan
5. Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka 573‑1010, Japan