Antineoplastic Agents, Phytogenic Humans 14 article 14 human 14 Molecular Structure 8 Drug Screening Assays, Antitumor 6 antineoplastic agent 6 chemical structure 6 chemistry 6 isolation and purification 6 Adult 4 Aged 4 Argentina 4 Celastraceae 4 Cell Line, Tumor 4 Diterpenes 4 Female 4 Magnetic Resonance Spectroscopy 4 Middle Aged 4 Neoplasm Recurrence, Local 4 Nuclear Magnetic Resonance, Biomolecular 4 Sesquiterpenes 4 Vinblastine 4 clinical trial 4 controlled study 4 drug potency 4 drug screening 4 drug structure 4 female 4 human cell 4