共 9 条
[2]
BATCHELOR GS, 1954, AMA ARCH IND HYG OCC, V10, P522
[3]
DURHAM WF, 1962, B WORLD HEALTH ORGAN, V26, P75
[6]
HARTWELL WV, MANUSCRIPT IN PREPAR
[9]
MICHEL HO, 1949, J LAB CLIN MED, V34, P1564