共 8 条
[1]
BRADFORDHILL A, 1967, PRINCIPLES MEDICAL S, pCH24
[4]
HERNBERG S, 1980, DEV OCCUPATIONAL MED, P1
[5]
Kitagawa E., 1973, DIFFERENTIAL MORTALI
[7]
SAULI H, 1979, NORDISK FORETAGSHALS, V2, P72
[8]
TOLA S, 1979, DEC C EP METH OCC EN