TY  - RPRT
TI  - Assessing confounding, effect modification, and thresholds in the association between ambient particles and daily deaths.
AU  - J Schwartz
PY  - 2000
DO  - 10.1289/ehp.00108563
UR  - https://pubmed.ncbi.nlm.nih.gov/10856032/
ID  - 10856032
ER  -