unclassified drug article 214 nonhuman 212 drug isolation 166 controlled study 122 drug structure 88 Animals 82 priority journal 62 Argentina 56 proton nuclear magnetic resonance 50 carbon nuclear magnetic resonance 46 Molecular Structure 44 chemistry 40 plant extract 40 Humans 38 isolation and purification 38 nuclear magnetic resonance 38 animal cell 36 human 36 structure analysis 34 Article 32 antiviral activity 32 Fungi 30 cytotoxicity 30 animal 28 human cell 28 metabolism 28 mycotoxin 28 antifungal activity 26 fungus isolation 26