Chagas Disease 4 Chagas disease Humans 4 article 4 human 4 tropical disease 4 world health organization 4 4 phenoxyphenoxyethyl allyl ether 2 4 phenoxyphenoxyethyl tetrahydro 2h pyran 2 yl ether 2 4 phenoxyphenoxyethyl thiocyanate 2 Animals 2 Antiprotozoal Agents 2 Drug Design 2 Pan American Health Organization 2 Tropical Medicine 2 Trypanosoma cruzi 2 animal experiment 2 animal model 2 anorexia 2 antiinfective agent 2 aryloxyethyl thiocyanate 2 benznidazole 2 benzoic acid derivative 2 clinical research 2 controlled study 2 crystal violet 2 dihydrofolate reductase inhibitor 2 disease control 2 disease transmission 2 drug design 2