TY  - RPRT
TI  - Selection bias in occupational sperm studies.
AU  - S B Larsen
AU  - A Abell
AU  - J P Bonde
PY  - 1998
DO  - 10.1093/oxfordjournals.aje.a009509
UR  - https://pubmed.ncbi.nlm.nih.gov/9554607/
ID  - 9554607
ER  -