共 8 条
[1]
BARWINEK F, 1996, PREVALENCE ANTIBODIE
[2]
BENNETT S, 1991, World Health Statistics Quarterly, V44, P98
[4]
DHALWA J, 1995, THESIS U READING
[5]
GUMM ID, THESIS U BRUNEL
[7]
MEDEROS AE, 1993, THESIS U READING
[8]
Orjuela J, 1991, WORLD ANIM REV, V69, P7