Sowmya K, Lakshmanan G, Selvam D, Saravanan. “A Study of Vitamin-D and Biochemical Changes in Breast Cancer”. Annals of the Romanian Society for Cell Biology (January 28, 2021): 36–44. Accessed December 1, 2022. https://www.annalsofrscb.ro/index.php/journal/article/view/68.