共 22 条
[4]
CURRAN MD, 1990, VET REC, V127, P430
[5]
DIETZ R, 1989, AMBIO, V18, P258
[8]
GRACHEV MA, 1989, NATURE, V338, P209, DOI 10.1038/338209a0
[9]
HARWOOD J, 1989, NEW SCI, V121, P38