서울대학교병원장：백반증의 발병원인은 아직 알려져 있지 않으며, 자가면역기전, 자가파괴기전, 신경체액설 등이 알려져 있다.
Seoul National University Hospital Director: The cause of leukoplakia is not yet known, and autoimmune mechanisms, autogenous destruction, mechanisms, and neurological fluid theories are known.