Trypanosoma cruzi 64 trypomastigote nonhuman 56 article 52 priority journal 50 Animals 42 epimastigote 38 controlled study 36 Trypanosoma 24 trypanosoma cruzi 24 Chagas Disease 22 Mice 18 enzyme activity 18 unclassified drug 18 Humans 16 Molecular Sequence Data 16 animal cell 16 Animal 14 Chagas disease 14 Support, Non-U.S. Gov't 14 animal experiment 14 human 14 metabolism 14 mouse 14 Amino Acid Sequence 12 Blotting, Western 12 Glycoproteins 12 animal 12 in vitro study 12 male 12