Name Info Provider Link
Vitamin D free resource MedlinePlus Health Information https://medlineplus.gov/vitamind.html
subscription/membership/fee required Nature Publishing Group https://doi.org/10.1038/ijo.2016.177
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=27698344.ui
free resource scite Smart Citations https://scite.ai/reports/27698344