共 9 条
[1]
CRAMER JA, 1994, NEUROL CLIN, V12, P1
[2]
FARNBACH GC, 1984, J AM VET MED ASSOC, V184, P1117
[3]
FARNBACH GC, 1984, COMP CONT EDUC PRACT, V6, P569
[4]
HAYS WL, 1994, STATISTICS, P611
[5]
Holcomb R., 1985, J DELTA SOC, V2, P28
[8]
PODELL M, 1995, J AM VET MED ASSOC, V206, P1721