Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/0925-4773(94)90020-5
	free resource	FlyBase	http://flybase.org/cgi-bin/uniq.html?db=fbrf&field=pubmed_id&context=7873401
Stem Cells	free resource	MedlinePlus Health Information	https://medlineplus.gov/stemcells.html