1. Medical Clinic III, UKB, Friedrich Wilhelms University of Bonn, Sigmund-Freudstr. 25, 53127 Bonn University, Germany
2. Division of Pharmacognosy, Department of Medicinal Chemistry, Uppsala University, BMC-Biomedical center, Box 574, S-751 23 Uppsala, Sweden
3. Department of Forestry, Ploshchad' Lenina, 3, Yoshkar-Ola, Mari El Republic, 424000, Russian Federation