目的要求Objective 了解本病的病因、发病机制 Understand:Etiology Pathogenesis 掌握本病的临床表现与护理 Mastered:Clinical manifestation Nursing目的要求 Objective 了解本病的病因、发病机制 Understand：Etiology & Pathogenesis 掌握本病的临床表现与护理 Mastered： Clinical manifestation & Nursing