共 9 条
[1]
ACKERMANN MR, 1993, J AM VET MED ASSOC, V202, P413
[2]
AGERHOLM JS, 1993, ACTA VET SCAND, V34, P237
[3]
GILBERT RO, 1993, J AM VET MED ASSOC, V202, P445
[4]
KEHRLI ME, 1990, AM J VET RES, V51, P1826
[5]
KEHRLI ME, 1992, CORNELL VET, V82, P103
[6]
MCVEY DS, 1993, FOOD ANIMAL PRACTICE, V9, P65
[7]
MULLER KE, 1994, VET QUART, V16, P65
[8]
NAGAHATA H, 1994, AM J VET RES, V55, P40
[9]
OLCHOWY TWJ, 1994, CAN VET J, V35, P242