General Surgery, Nottingham University Hospitals NHS Trust, Nottingham, GBR. Surgery, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA. Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA. Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, IND. General Surgery and Orthopaedic Surgery, Cornerstone Regional Hospital, Edinburg, USA. General Surgery, Stony Brook Southampton Hospital, New York, USA. Surgery, LaSante Health Center, Brooklyn, USA. Medicine, Beni Suef University Faculty of Medicine, Beni Suef, EGY. Neurology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA. Surgery, Halifax Health Medical Center, Daytona Beach, USA. Surgery, Dr.Pinnamaneni Siddhartha Institute Of Medical Sciences And Research Foundation, Gannavaram, IND. General Surgery, Liaquat University of Medical and Health Sciences, Jamshoro, PAK. Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA.