Name	Info	Provider	Link
Free full text from BORIS	free resource	Bern Open Repository and Information System	https://boris.unibe.ch/id/eprint/137764
Bone Grafts	free resource	MedlinePlus Health Information	https://medlineplus.gov/bonegrafts.html
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/s00784-019-02964-3