共 15 条
[1]
BAKER JR, 1984, J ZOOL, V203, P23, DOI 10.1111/j.1469-7998.1984.tb06042.x
[6]
CURRAN MD, 1990, VET REC, V127, P430
[8]
HOBART M, 1975, IMMUN SYSTEM
[10]
OSTERHAUS A, 1985, NATURE, V335, P20