echinococcosis Animals 20 mouse 20 nonhuman 20 Echinococcosis 18 controlled study 18 Echinococcus granulosus 16 Mice 16 animal 16 drug efficacy 16 female 16 Female 14 animal experiment 14 animal model 14 metacestode 14 Albendazole 12 Article 12 article 12 Anthelmintics 10 albendazole 10 in vitro study 10 scanning electron microscopy 10 Larva 8 animal tissue 8 anthelmintic agent 8 drug effects 8 in vivo study 8 larva 8 parasite viability 8 Cystic echinococcosis 6