human nonhuman Humans 386 Animals 348 priority journal 308 controlled study 296 article 276 human cell 254 unclassified drug 240 animal cell 214 mouse 182 animal 168 Mice 160 metabolism 144 protein expression 142 Article 128 animal experiment 120 signal transduction 118 enzyme activity 92 in vitro study 90 animal model 88 cell proliferation 76 review 76 Signal Transduction 74 male 74 Cell Line 72 chemistry 72 female 72 Female 70 antiviral activity 70