Department of Oncological and Interventional Radiology, Italy.
Peking Union Medical College Hospital, Chinese Academy Medical Sciences
Pharmacy Department, Hospital Seri Manjung, Perak
Department of Radiation Therapy, University of Otago, Wellington
Assistant Professor, Department of Chemical Pathology Medical Research Institute - Alexandria University
Professor Emeritus, School of Biological Sciences, University of Reading, UK.
Peking Union Medical College Hospital,China
Department of Pharmacology and Therapeutics, UAE
University of Sinnar, Sudan.