Animals article 266 animal 248 nonhuman 224 isolation and purification 208 Argentina 140 controlled study 130 Humans 106 human 100 parasitology 98 priority journal 98 female 88 Female 86 Male 82 male 82 unclassified drug 82 Article 66 animal cell 66 chemistry 64 classification 64 Mice 62 Trypanosoma cruzi 60 mouse 60 animal tissue 58 animal experiment 56 drug isolation 54 genetics 54 metabolism 52 physiology 44 microbiology 42