Cedrela tubiflora article 8 plant extract 8 plant leaf 8 Cedrela 6 controlled study 6 Animalia 4 Humans 4 Meliaceae 4 Plants, Medicinal 4 Poliovirus 4 Polysaccharides 4 Vesicular stomatitis virus 4 animal cell 4 antiviral activity 4 cytotoxicity 4 drug isolation 4 human 4 inflammation 4 nonhuman 4 polysaccharide 4 unclassified drug 4 Adjuvants, Immunologic 2 Animals 2 Anti-inflammatory 2 Anticomplementary activity 2 Antiviral activity 2 Aqueous extracts 2 Arenavirus 2 Argentina 2