TY  - GEN
AU  - Hopke,P K
AU  - Montassier,N
TI  - Inconsistency in the length of a working month
SN  - 0017-9078
PY  - 1992///1022
KW  - Humans
KW  - Occupational Exposure
KW  - analysis
KW  - Radon
KW  - Time Factors
N1  - Publication Type: Letter
ER  -