1. Kulie T, Groff A, Redmer J, Hounshell J, Schrager S (2009) Vitamin D: an evidence-based review. J Am Board Fam Med 22:698–760
2. Dusso AS, Brown AJ, Slatopolsky E (2005) Vitamin D. Am J Physiol Renal Physiol 289(1):8–28
3. Bikle DD (2021) Vitamin D: Production, Metabolism and Mechanisms of Action. In: Feingold KR, Anawalt B, Boyce A, Chrousos G, de Herder WW, Dhatariya K, Dungan K, Hershman JM, Hofland J, Kalra S, Kaltsas G, Koch C, Kopp P, Korbonits M, Kovacs CS, Kuohung W, Laferrère B, Levy M, McGee EA, McLachlan R, Morley JE, New M, Purnell J, Sahay R, Singer F, Sperling MA, Stratakis CA, Trence DL, Wilson DP (eds). South Dartmouth (MA): MDText.com
4. Kim D (2017) The role of vitamin D in thyroid diseases. Int J Mol Sci 18:1949
5. Christakos S, Dhawan P, Verstuyf A, Verlinden L, Carmeliet G (2016) Vitamin D: metabolism, molecular mechanism of action, and pleiotropic effects. Physiol Rev 96(1):365–408