Klečáková, J: Xanthium spinosum - a study of the metabolites and their biological effects : Cardiovascular Diseases and Stability of Organism - Phytotherapeutical Possibilities (Cadiso 98) and Food Additives and their Relationship to the Prevention of Cardiovascular Diseases (Nutrimenta II) - A Symposium and|Workshop held on September 15-17, 1998 at Charles University Prague, Faculty of Pharmacy Hradec Králové, Czech Republic. Posters