共 6 条
[1]
COGGINS L, 1964, AM J VET RES, V25, P103
[2]
KAHRS RF, 1966, P US LIVESTOCK SANIT, V70, P145
[3]
OLAFSON P, 1946, CORNELL VET, V36, P205
[4]
PETER CP, 1967, J AM VET MED ASSOC, V150, P46
[5]
ROSNER SF, 1968, J AM VET MED ASSOC, V152, P898
[6]
TYLER DE, 1968, J AM VET MED ASSOC, V152, P907