Clonorchis sinensisClonorchiasisOpisthorchisTrematode InfectionsMetacercariaeOpisthorchiasisHeterophyidaeTrematodaParasite Egg CountKoreaPraziquantelDNA, HelminthAnthelminticsCholecystolithiasisAngelica sinensisAntibodies, HelminthCitrus sinensisCamellia sinensisAntigens, HelminthAntiplatyhelmintic AgentsParasitesOsmeriformesCellophaneFood ParasitologyPhenylenediaminesIntestinal Diseases, ParasiticParasitologyHelminth ProteinsFishesHost-Parasite InteractionsBile Ducts, IntrahepaticFecesFish DiseasesCordyceps