TY  - RPRT
TI  - Using pooled exposure assessment to improve efficiency in case-control studies.
AU  - C R Weinberg
AU  - D M Umbach
PY  - 1999
DO  - 10.1111/j.0006-341x.1999.00718.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11314998/
ID  - 11314998
ER  -