共 5 条
[1]
ASPLIN F. D., 1958, Veterinary Record, V70, P1226
[2]
ASPLIN F. D., 1956, Veterinary Record, V68, P412
[3]
HANSON LE, 1960, POULTRY SCI, V39, P1257
[4]
HWANG J, 1962, J AM VET MED ASSOC, V141, P1474
[5]
LEVINE PP, 1950, CORNELL VET, V40, P71