TY  - RPRT
TI  - [Methodologic problems in studying mortality among industrial workers (using the coal industry as an example)].
AU  - F Kh Zinger
AU  - E S Sorokin
PY  - 1983
UR  - https://pubmed.ncbi.nlm.nih.gov/6873717/
ID  - 6873717
ER  -