How soon do venous drainage channels develop at the periphery of a free flap? A study in rats.
D000818:Animals; D006085:Graft Survival; D008026:Ligation; D008833:Microcirculation; D051381:Rats; D012867:Skin / Q000098:blood supply; D016038:Skin Transplantation; D013997:Time Factors; D014182:Transplantation, Autologous