TY  - RPRT
TI  - Occupational mortality studies. Principles of validity.
AU  - J D Wang
AU  - O S Miettinen
PY  - 1982
DO  - 10.5271/sjweh.2480
UR  - https://pubmed.ncbi.nlm.nih.gov/7156934/
ID  - 7156934
ER  -