Farida Chentli1, Brahim Terki2, Said Azzoug2. 1. Bab El Oued teaching Hospital, department of endocrine and metabolic diseases, 5, boulevard Said Touati, Algiers, Algeria. Electronic address: chentli.f@gmail.com. 2. Bab El Oued teaching Hospital, department of endocrine and metabolic diseases, 5, boulevard Said Touati, Algiers, Algeria.