Bakılan , Fulya, Burcu Ortanca, Ayşe Ekim, and Fezan Şahin Mutlu. “Does the Levels of Vitamin D Correlate With the Levels of Vitamin B12 and Ferritin in Fibromyalgia? Does Vitamin D Correlate With Vitamin B12 and Ferritin?”. Journal of Surgery and Medicine 7, no. 11 (November 20, 2023): 732–735. Accessed July 3, 2024. https://jsurgmed.com/article/view/7521.