共 17 条
[11]
NATER JP, 1982, ADVERSE REACTIONS DE
[12]
REA JN, 1976, BRIT J PREV SOC MED, V30, P107
[13]
SCHWARTZ L, 1957, OCCUPATIONAL DISEASE, P26
[15]
VANDERLENDE R, 1981, CLIN RES PROC, V17, P775
[16]
1971, 14TH CENSUS
[17]
1978, REGIONAL STATISTICAL