MEI-HWEI CHANG2018-09-102018-09-101989http://www.airitilibrary.com/Publication/Index/00016578-198904-30-2-94-99-ahttp://scholars.lib.ntu.edu.tw/handle/123456789/353795某智能不足兒童教養院內梨形鞭毛蟲症之調查journal article