Name	Info	Provider	Link
Gas	free resource	MedlinePlus Health Information	https://medlineplus.gov/gas.html
	free resource	Nature Publishing Group	https://doi.org/10.1038/srep12693
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26239401/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26239401
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:26239401
	free resource	scite Smart Citations	https://scite.ai/reports/26239401