[1] Master Surg Trust, Worcester, Worcs, England
[2] Leeds Gen Infirm, Leeds Vasc Inst, Leeds, W Yorkshire, England
[3] Royal Wolverhampton NHS Trust, Wolverhampton, England
[4] Univ Birmingham, Coll Med & Dent Sci, Birmingham, W Midlands, England
[5] Univ Hosp Leicester NHS Trust, Dept Cardiac Surg, Leicester, Leics, England
[6] Walsall Healthcare NHS Trust, Walsall, W Midlands, England
[7] North East Deanery, Newcastle Upon Tyne, Tyne & Wear, England
[8] Univ Hosp Plymouth NHS Trust, Plymouth, Devon, England
[9] Baroda Med Coll, Vadodara, India
[10] Moti Lal Nehru Med Coll, Allahabad, Uttar Pradesh, India
[11] Univ Jordan, Fac Med, Amman, Jordan
[12] HCG Canc Ctr, Bangalore, Karnataka, India
[13] Menoufia Univ, Fac Med, Menoufia, Egypt
[14] Indira Gandhi Med Coll & Res Inst, Pondicherry, India
[15] Betsi Cadwaladr Univ Hlth Board, Ysbyty Gwynedd, Bangor, Gwynedd, Wales
[16] Lokmanya Tilak Municipal Gen Hosp & Med Coll, Mumbai, Maharashtra, India
[17] Tobruk Univ, Fac Med, Tobruk, Libya
[18] King Georges Med Univ, Fac Med, Lucknow, Uttar Pradesh, India
[19] Vardhman Mahavir Med Coll, New Delhi, India
[20] Safdarjang Hosp, New Delhi, India
[21] Univ Tripoli, Fac Med, Tripoli, Libya
[22] Bharati Vidyapeeth Deemed Univ Med Coll, Pune, Maharashtra, India
[23] Queens Univ Belfast, Fac Life Sci, Sch Med, Belfast, Antrim, North Ireland
[24] Combined Mil Hosp Lahore Med Coll, Lahore, Pakistan
[25] Univ Cent Lancashire, Sch Med, Preston, Lancs, England