Director of the BioSpectroscopy, Core Research Laboratory, California South University, Head of Cancer Research Institute, California South University, Irvine, California, USA
Associate Dean of Clinical Affairs and Professor, College of Pharmacy and Pharmaceutical Sciences, Institute of Public Health, Florida A&M University, Florida, USA
Lecturer,Department of Chemical and Pharmaceutical Sciences, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, London, United Kingdom.