1. First Department of Surgery, Kansai Medical University, Moriguchi City, Osaka, 570-8507, Japan
2. Sagano Co., Ltd., Kobe City, Hyogo, 651-2133, Japan
3. Kyodo Byori, Kobe City, Hyogo, 650-0034, Japan
4. Regeneration Research Center for Intractable Diseases, Kansai Medical University, Moriguchi City, Osaka, 570-8507, Japan