TY  - RPRT
TI  - Environmental factors.
AU  - M R Becklake
AU  - P Ernst
PY  - 1997
DO  - 10.1016/s0140-6736(97)90030-1
UR  - https://pubmed.ncbi.nlm.nih.gov/9343098/
ID  - 9343098
ER  -