1. Institute of Natural MedicineUniversity of Toyama 2630-Sugitani Toyama 930-0194 Japan
2. Pharmaceutical and Drug Industries Research DivisionPharmacognosy DepartmentNational Research Centre P.O. Box 12622, 33 El Bohouth St. (Former El Tahrir St.) Dokki, Giza Egypt
3. Faculty of PharmacyTon Duc Thang University Ho Chi Minh City 700000 Vietnam
4. Institute of OceanographyVietnam Academy of Science and Technology Nha Trang 570000 Vietnam
5. College of Natural SciencesCan Tho University Can Tho 900000 Vietnam