J28: Safety • Job Satisfaction • Related Public Polic, J81: Working Conditions, I31: General
J22,J28,J30
D47, D82, J28, M5
C9 J21 J24 J28
G53, I12, I31, I32, J22, J28, J47, J61, J81, J82
J24; J28; L26
J22, J28, J31, J32, J63, J81
I21, J2, J24, J28, K2, L51, M4
J61, J28
J24, J28, J30, J31, J33, J38, I24, I26, I28, I38