共 13 条
[1]
BJORSELL KA, 1969, ACTA VET SCAND, V10, P36
[3]
GARM OTTO, 1950, NORDISK VETERINAERMED, V2, P751
[4]
HALLGREN W., 1955, Nordisk Veterinaermedicin, V7, P433
[5]
JACOBSSON SO, 1962, CORNELL VET, V52, P173
[6]
JOHNSON BL, 1962, MODERN VET PRACTICE, V41, P37
[7]
JONSSON G, 1969, Zentralblatt fuer Veterinaermedizin Reihe A, V16, P757
[8]
JULIEN WE, 1976, THESIS OHIO STATE U
[9]
KRONFELD DS, 1974, MODERN VET PRACTICE, V55, P79
[10]
LITTLEDI.ET, 1969, J AM VET MED ASSOC, V155, P1955