Safety and efficacy of an iBTA-induced autologous Biotube vascular graft and its preparation device BTM1 in below-the-knee bypass surgery for chronic limb threatening ischemia: A protocol for an open-label, single-arm, multicenter clinical trial. - Shuto T; Higashita R; Sako H; Abe F; Yabuuchi N; Umeno T; Mori K; Kawashima T; Nakashima Y; Nakayama Y; Miyamoto S (PloS one, 2025)