article 786 nonhuman 556 isolation and purification 546 Animals 361 Argentina 311 animal 309 controlled study 287 unclassified drug 267 priority journal 259 drug isolation 221 metabolism 217 chemistry 209 human 183 genetics 163 microbiology 163 Humans 157 Article 146 classification 142 male 113 female 112 Support, Non-U.S. Gov't 110 Male 102 drug structure 101 parasitology 101 Female 99 Fungi 96 animal cell 89 Molecular Sequence Data 88 Trypanosoma cruzi 88 Animal 87