TY - GEN AU - Laila Abdelghani Tantawy AU - Afaf Amin , AU - Nabiha Ramadan Aly Hassan , TI - Pathological studies on SPF fertile eggs inoculated with some viral strains / PY - 1999/// CY - Cairo : PB - Laila Abdelghani Tantawy , N1 - Thesis (Ph.D.) - Cairo University - Faculty Of Veterinary Medicine - Department Of Clinical Pathology UR - http://172.23.153.220/th.pdf ER -