unclassified drug Molecular Structure 170 article 152 nonhuman 100 controlled study 84 Animals 70 chemical structure 68 drug structure 62 Magnetic Resonance Spectroscopy 46 chemistry 44 human 42 Humans 40 Structure-Activity Relationship 38 priority journal 38 drug isolation 36 drug synthesis 36 structure analysis 36 synthesis 36 human cell 32 carbon nuclear magnetic resonance 30 proton nuclear magnetic resonance 30 Dose-Response Relationship, Drug 28 Nuclear Magnetic Resonance, Biomolecular 26 nuclear magnetic resonance spectroscopy 26 structure activity relation 26 Argentina 24 animal cell 24 antifungal activity 22 nuclear magnetic resonance 22 Antifungal Agents 18