[1] Jiangsu Univ, Affiliated Hosp, Inst Regenerat Med, Zhenjiang 212001, Jiangsu, Peoples R China
[2] Jiangsu Univ, Affiliated Hosp, Dept Dermatol, Zhenjiang 212001, Jiangsu, Peoples R China
[3] Jiangsu Univ, Affiliated Hosp, Dept Gastroenterol, Zhenjiang 212001, Jiangsu, Peoples R China
[4] Nanjing Med Univ, Sir Run Run Hosp, Digest Dept, Nanjing 211166, Peoples R China
[5] Yokohama City Univ, Sch Med, Dept Regenerat Med, Yokohama, Kanagawa, Japan
[6] Univ Tsukuba, Fac Med, Dept Surg, Tsukuba, Ibaraki, Japan
[7] Univ Tokyo, Ctr Stem Cell Biol & Regenerat Med, Inst Med Sci, Div Regenerat Med, Tokyo, Japan