Name	Info	Provider	Link
Gallstones	free resource	MedlinePlus Health Information	https://medlineplus.gov/gallstones.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30133684/
	free resource	Scientific Electronic Library Online	https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-67202018000300308&lng=en&nrm=iso&tlng=en
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30133684
	free resource	scite Smart Citations	https://scite.ai/reports/30133684