[1] Natl Univ Athens, Dept Internal Med 2, Ctr Diabet, Athens, Greece
[2] Alexandra Hosp, Athens, Greece
[3] Poliklin, Athens, Greece
[4] Univ Alexandria, Alexandria, Egypt
[5] Univ Algiers, Algiers, Algeria
[6] Univ Tunis, Tunis, Tunisia
[7] Univ Damascus, Damascus, Syria
[8] Univ Rabat, Rabat, Morocco
[9] Univ Belgrade, Belgrade, Serbia
[10] Univ Rome, Rome, Italy
[11] Univ Beirut, Beirut, Lebanon
[12] Univ Valetta, Valetta, Malta
[13] Univ Paris, F-75252 Paris, France