TY  - RPRT
TI  - Reducing classification errors in cohort studies: the approach and a practical application.
AU  - K F Schulz
AU  - W Cates
AU  - D A Grimes
AU  - R M Selik
AU  - C W Tyler
DO  - 10.1002/sim.4780020104
UR  - https://pubmed.ncbi.nlm.nih.gov/6648118/
ID  - 6648118
ER  -