TY  - RPRT
TI  - Effects of systematic exposure assessment errors in partially ecologic case-control studies.
AU  - Jonas Björk
AU  - Ulf Strömberg
PY  - 2002
DO  - 10.1093/ije/31.1.154
UR  - https://pubmed.ncbi.nlm.nih.gov/11914312/
ID  - 11914312
ER  -