Bioactive compounds from the genus Broussonetia<br>Chemical and biological studies on Licania genus<br>Recent progress in retinoid chemistry<br>Bioactive tetramic acid metabolites<br>Chemistry and biological activities of Ginkgo biloba<br>Chemistry and biological activities of isoprenylated flavonoids from medicinal plants<br>Plant polyphenols: Structure, occurrence and bioactivity<br>Promising pharmacological actions of crocin in Crocus sativus on the central nervous system<br>Synthesis and modification of marcfortine and paraherquamide class of anthelmintics<br>Acaricides of natural origin, personal experiences and review of literature (1990-2001)<br>Podolactones: A group of biologically active norditerpenoids<br>Antitumoral activity of lipids A studies in animal models and cancer patients<br>Prevention of cancer chemotherapy drug-induced adverse reaction, antitumor and antimetastatic activities by natural products<br>Biologically active triterpene glycosides from sea cucumbers (holothuroidea, echinodermata)<br>Sulfur-containing natural products from marine invertebrates