Affiliations: 
  1. Khyber Teaching Hospital MTI KTH, Peshawar, Pakistan
  2. Mercer University School of Medicine, Macon, GA, USA
  3. Chicago College of Osteopathic Medicine, Downers Grove, IL, USA
  4. Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
  5. Kennesaw State University, Kennesaw, GA, USA
  6. Nanjing Medical University, Nanjing, China
  7. Saint Louis University, Missouri, USA
  8. Rutgers New Jersy Medical School, New Jersy, USA
  9. St. George’s University School of Medicine, True Blue, Grenada
  10. Long School of Medicine at the University of Texas Health Science Center San Antonio, San Antonio, TX, US
Corresponding author:     Muhammad Afzal
St. George’s University School of Medicine, True Blue, Grenada
mafzal@sgu.edu
Manuscript Word Count: 2775
Number of Figures: 2
Number of Tables: 1