Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-020-01686-8
Secondhand Smoke	free resource	MedlinePlus Health Information	https://medlineplus.gov/secondhandsmoke.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32811491/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/32811491
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-68
Full text from	free resource	Diposit Digital de la Universitat de Barcelona	http://hdl.handle.net/2445/177166