nonhuman 18 teratogenicity Animals 10 human 10 priority journal 10 Humans 8 article 8 review 8 unclassified drug 8 Antiprotozoal Agents 6 animal experiment 6 animal tissue 6 controlled study 6 Amphibia 4 Argentina 4 Chagas disease 4 Larva 4 Trypanosoma brucei 4 Trypanosoma cruzi 4 animal model 4 benznidazole 4 bioassay 4 cadmium acetate 4 chick embryo 4 concentration response 4 copper sulfate 4 drug mechanism 4 drug targeting 4 eflornithine 4 embryo 4