共 28 条
[11]
KVARNFORS E, 1975, ACTA VET SCAND, V16, P163
[12]
LEMON HM, 1966, P AM ASSOC CANC RES, V7, P41
[13]
LINOS A, 1978, MAYO CLIN PROC, V53, P714
[14]
MASON TH, 1975, DHEW NIH75780 PUBL
[17]
MILHAM S, 1976, OCCUPATIONAL MORTALI, V1
[18]
PREISTER WA, 1970, LANCET, V1, P367
[19]
WISINEWSKI D, 1966, BLUT, V12, P241
[20]
1966, 1964 CENSUS AGR, V1