Animals nonhuman 158 article 128 controlled study 120 animal cell 108 cytotoxicity 108 unclassified drug 96 priority journal 90 Humans 84 animal 84 Mice 82 mouse 80 human 72 Cercopithecus aethiops 66 Antiviral Agents 64 Vero Cells 64 antiviral activity 52 Article 46 in vitro study 46 drug cytotoxicity 44 drug structure 42 Cell Survival 40 animal experiment 40 antivirus agent 40 drug effects 40 human cell 40 animal model 38 Cell Line 34 Herpesvirus 1, Human 34 apoptosis 32