Harrabi Imed1, Maatoug Maaloul Jihene 1*, Ben Hammouda Hamida1, Gaha Rafika1, Lazreg Fatma2, Boussaadia Amel2 and Ghannem Hassen1
1Department of Epidemiology and Medical Statistics, Farhat Hached Hospital, BP 126 4002 Sousse Tunisia.
2Regional Direction of Scholar Medicine, Tunisia.
