[1] CHU Mustapha, Algiers, Algeria
[2] CHU Ben Baddis, Constantine, Algeria
[3] CHU Ibn Rochd, Annaba, Algeria
[4] CHU Batna, Batna, Algeria
[5] CHU Sidi Bellabes, Sidi Bellabes, Algeria
[6] CHU Tizi Ouzou, Tizi Ouzou, Algeria
[7] CHU Oran, Oran, Algeria
[8] Algerian Inst Hlth Res, Algiers, Algeria