Ammar-Keskes L, Chakroun N, Ben Hamida AS, Hadj-Kacem L, Bouayed-Abdelmoula N, Ayadi H, MHIRI MOHAMEDNABIL, Rebai T, Bahloul A. Clinical and laboratory features of azoospermia in Tunisian infertile men. BASIC AND CLINICAL ANDROLOGYBASIC AND CLINICAL ANDROLOGY. 2007;17 :71-79.