Naoaki Sakata Expert Global citimpact: 20.93 Researcher, Assisstant Professor at Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, . Profile Groups View View Profile Please login or register to access this profile