00533     2200157   4500001002100000005001500021008004100036035001900077041000700096082002300103090002300126100001700149245012400166300003000290650005500320INLIS00000000000915520210520150428210520|||||||||   |   |||   |||| ||   |   0010-0521009155  aen0 aTh.636.5.089/HAM/s  aTh.636.5.089/HAM/s0 aHamid, Helmy00aStudies on the pathogenesis and pathology of experimental Newcastle diseases in birds with different levels of immunity  axvi, 136 p.: ill.; 29 cm. 0aNEWCASTLE DISEASES -- BIRDS -- PATHOLOGY -- THESIS