For citations:
Agranovich N.V., Pilipovich L.A., Albotova L.V., Klassova A.T. About the question of vitamin D deficiency in chronic kidney disease. Literature review. Nephrology (Saint-Petersburg). 2019;23(3):21-28. (In Russ.) https://doi.org/10.24884/1561-6274-2019-23-3-21-28