Animals article nonhuman 108 controlled study 82 cytotoxicity 78 animal cell 74 unclassified drug 72 Mice 58 priority journal 54 Humans 52 Cercopithecus aethiops 50 Antiviral Agents 48 Vero Cells 48 mouse 48 antiviral activity 42 human 42 drug structure 36 drug cytotoxicity 32 Cell Line 28 Cell Survival 28 animal 28 human cell 28 in vitro study 28 animal experiment 26 animal model 26 Antiviral activity 24 Herpesvirus 1, Human 24 Vero cell 24 antivirus agent 24 drug isolation 24