TY  - RPRT
TI  - Exposure assessment in community-based epidemiological studies.
AU  - P Stewart
PY  - 1999
DO  - 10.1016/s0140-6736(99)90075-2
UR  - https://pubmed.ncbi.nlm.nih.gov/10359403/
ID  - 10359403
ER  -