共 28 条
[21]
SCHANTZ PM, 1983, COMP CONT EDUC PRACT, V5, P163
[24]
SCHANTZ PM, 1983, COMPEND CONTIN ED PR, V5, P172
[25]
Schwabe C.W, 1969, VET MED HUMAN HLTH
[26]
Schwabe CW., 1977, EPIDEMIOLOGY VET PRA
[27]
*US CTR DIS CONTR, 1982, ZOON LIST
[28]
1980, MMWR, V29, P505