共 16 条
[1]
CARMICHAEL LE, 1968, J AM VET MED ASSOC, V152, P605
[2]
CARMICHAEL LE, 1968, CORNELL VET, V58, P579
[3]
CARMICHAEL LE, 1970, J AM VET MED ASSOC, V156, P1726
[4]
CARMICHAEL LE, 1968, P US LIVESTOCK SANIT, V71, P517
[5]
DIAZ R, 1973, Annales de Recherches Veterinaires, V4, P283
[7]
FLORESCASTRO R, 1978, THESIS CORNELL U ITH
[8]
FLORESCASTRO R, 1977, GAINES VET S, V27, P17
[9]
GEORGE L, 1974, THESIS CORNELL U ITH