for medical providers

Resources and References:

Vitamin D

1. Katherine Hurst,  MSc, MD; Primary Hyperparathyroidism as a secondary cause of depression. J AM Board Fam Med 2010;23:677-80. 
2. Teresa Kulie, Amy Groff, Jackie Redmer, Jennie Hounshell, and Sarina Schrager. Vitamin D: An Evidence-Based Review. J Am Board Fam Med, Nov-Dec, 2009; 22: 698 – 706.
3. Wissam Saliba and Boutros El-Haddad; Secondary Hyperparathyroidism: Pathophysiology and Treatment; J Am Board Fam Med, Sept-Oct 2009; 22: 574 – 581. 
4. D. A. Hanley and K. S. Davison; Vitamin D Insufficiency in North America; J. Nutr., February 1, 2005; 135(2): 332 – 337.
5.  Dietary Supplements Fact Sheet: Vitamin D; Naitonal Institutes of Health.