For citations:
Suplotova L.A., Avdeeva V.A., Sudnitsyna A.S., Rozhinskaya L.Y. Hyperparathyroidism and Vitamin D: Relationship Difficulties. Osteoporosis and Bone Diseases. 2022;25(1):23-28. (In Russ.) https://doi.org/10.14341/osteo12944

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