Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0021-9258(19)89050-6
Asthma	free resource	MedlinePlus Health Information	https://medlineplus.gov/asthma.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20630862/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/20630862
Cited by Patents in	free resource	The Lens - Patent Citations Database	https://www.lens.org/lens/search/patent/list?q=reference_cited.nlp.ids.pmid:20630862
Asthma	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/asthma.html