Animals nonhuman 90 IC 50 80 article 78 controlled study 68 unclassified drug 62 priority journal 44 Humans 40 human 40 animal cell 38 in vitro study 34 animal 30 human cell 26 Cercopithecus aethiops 24 concentration response 24 mouse 24 Inhibitory Concentration 50 22 drug structure 22 drug synthesis 22 Antiviral Agents 20 Vero Cells 20 animal experiment 20 chemistry 20 enzyme inhibition 20 metabolism 20 Article 18 Mice 18 Structure-Activity Relationship 18 Trypanosoma cruzi 18 enzyme activity 18