Post-Doctoral Fellow (PDF)  Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, Kentucky, USA, 2013-2014

Post-Doctoral Fellow (PDF)  Department of Psychiatry and Behavioural Sciences, School of Medicine, University of Louisville and VA Medical center, Kentucky, USA, 2011-2013

Post-Doctoral Research Fellow, (PDF) Department of Cellular and Molecular Biochemistry, The Ohio State University Medical Center, Columbus Ohio, USA , 2009-2010

Post-Doctoral Fellow,( PDF) Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA, 2005-2009

Post-Doctoral Fellow, Department of Biochemistry and Molecular biology, Medical University of South Carolina, Charleston, South Carolina, USA,2003