1. Internal Medicine, Ziauddin Medical College
2. Department of Pharmacology, Ziauddin Medical University
3. Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
4. Lahey Hospital and Medical Center, Burlington, Massachusetts
5. Morriston Hospital, Wales, UK
6. Aga Khan University Hospital, Karachi, Pakistan
7. Royal College of Surgeons in Ireland, Busaiteen, Bahrain
8. Beaumont Hospital
9. Royal College of Surgeons in Ireland, Dublin, Ireland
10. New Cross Hospital, Wolverhampton
11. University Hospitals Cleveland Medical Center, Ohio, USA