DR. N. DEEPTHI, and DR. E. DHANDAPANI. “Correlation of Secondary Hyperparathyroidism With Chronic Kidney Disease and Its Stages – A Prospective Study”. International Journal of Pharma and Bio Sciences, vol. 9, no. 1, Mar. 2018, pp. 293-7, doi:10.22376/ijpbs.2018.9.1.b293-297.