[1] two new pentacyclic triterpene saponins from the leaves of akebia trifoliata

[2] entamoeba histolytica: adhesins and lectins in the trophozoite surface

[3] three new tetranorditerpenes from aerial parts of acerola cherry (malpighia emarginata)

[4] an alkaloid and a steroid from the endophytic fungus aspergillus fumigatus