English: P20 Development of Schistosoma japonicum sporocysts in Oncomelania snails : Development of the Japanese strain of Schistosoma japonicum mature daughter sporocysts in Oncomelania hupensis nosophora and O. h. chiui
Japanese: P20 Oncomelania 体内に於ける日本住血吸虫スポロシストの発育 : 日本産日本住血吸虫成熟スポロシストの Oncomelania hupensis nosophora 及び O. h. chiui 体内に於ける発育