1. Department
of Drug Design and Pharmacology, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
2. Medicinal
and Aromatic Plants Department, Desert Research Center, El-Matariya 11753, Cairo, Egypt
3. Chemistry
of Tannins Department, National Research Centre, Dokki 12622, Cairo, Egypt
4. Chemistry
Department, Menoufia University, Shebin El-Kom 32861, El-Menoufia, Egypt
5. Department
of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark