. "Pusan National University Yangsan Hospital" . . . . . . . . . . . . . . . . . "Pusan National University Hospital" . . . . . . . . . . . . . . "Pusan National University Press" . "Pusan National University" . "University of Pusan" . . . . . . . . . . . . . . "Yangsan Pusan National University Hospital" . . "Busan National University" . . . . . . . . . . "Pusan National University" . .