[1] Dept Med Educ Res, Bukavu, DEM REP CONGO
[2] King Edward Med Univ Lahore, Mayo Hosp Lahore, Dept Internal Med, Lahore, Pakistan
[3] Univ Baghdad, Al Kindy Coll Med, Dept Internal Med, Baghdad, Iraq
[4] Babcock Univ Teaching Hosp, Dept Internal Med, Ilishan Remo, Ogun State, Nigeria
[5] Univ Debrecen, Dept Internal Med, Debrecen, Hungary
[6] Bayero Univ, Coll Hlth Sci, Dept Med & Surg, Kano, Kano State, Nigeria
[7] Univ Ibadan, Dept Pharmacognosy, Ibadan, Oyo State, Nigeria
[8] David Tvildiani Med Univ, Dept Med, Tbilisi, Georgia
[9] Shaikh Khalifa Bin Zayed Al Nahyan Med & Dent Coll, Dept Med, Lahore, Pakistan
[10] Dow Univ Hlth Sci, Dept Med, Karachi, Pakistan
[11] Kamuzu Univ Hlth Sci, Dept Res & Eth, Blantyre, Malawi