From

The Relationship of Intact Parathyroid Hormone and Ionised Calcium in Secondary Hyperparathyroidism among Hemodialysis Patients

T Sudhakar, Sabitha Kandi, B venugopal, K. Bhagwan Reddy, K. V. Ramana

American Journal of Clinical Medicine Research. 2014, 2(4), 75-78 doi:10.12691/ajcmr-2-4-3