EL-WANIS, N., EL-DERHALLI, F., NASSAR, A., EL-BIARy, E., EL-BORDENI, F., EL-ASIL Y, S., HASAN, N., BARHOUMA, N. M. (1991). 'EFFECT OF INFECTION WITH EIMERIA NECATRIX ON THE RESPONSE OF CHICKENS TO NDV VACCINES II- Using Lentogenic Hitchner B, (HB) strain of NDV', Assiut Veterinary Medical Journal, 25.2(50), pp. 80-89. doi: 10.21608/avmj.1991.208440