Yoshio Yamaoka
Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan
Dr. Yoshio Yamaoka is currently the Chair for Department of Environmental and Preventive Medicine at Oita University, Japan.He was awarded PhD in 1997.His cerifications include: National Board of Medicine, Japenese Society of Internal Medicine, Japenese Society of Gastroenterological Endoscopy, JApenese Society of Gastroenterology, etc.