TY  - RPRT
TI  - Does environmental endotoxin exposure prevent asthma?
AU  - J Douwes
AU  - N Pearce
AU  - D Heederik
PY  - 2002
DO  - 10.1136/thorax.57.1.86
UR  - https://pubmed.ncbi.nlm.nih.gov/11809997/
ID  - 11809997
ER  -