共 12 条
[1]
*BUR CENS, 1992, 1990 CENS POP
[2]
CATTLEDGE G, 1993, 2 WORLD C INJ CONTR
[3]
COHEN HH, 1982, FALL ACCIDENT PATTER
[4]
KEYSERLING MW, 1988, OCCUPATIONAL HLTH RE
[6]
*NAT I OCC SAF HLT, 1993, 93108 DHHS NIOSH US
[7]
*NAT I OCC SAF HLT, UNPUB NAT TRAUM OCC
[8]
*US DEP INT, 1992, CENS POP 1990 EQ EMP
[9]
*US DEP LAB, 1984, INJ RES FALLS EL
[10]
*US DEP LAB, 1991, BUR LAB STAT B, V2379