in patients there was a highly significant positive correlation between ipth and ucamp and a negative relationship between both indices of parathyroid activity to serum phosphate and urine calcium , respectively , indicating that the simple measurement of serum phosphate and/or urine camp and ca provides a reliable tool for the assessment of secondary hyperparathyroidism in vdr .
C0030518
parathyroid
C0020503
secondary hyperparathyroidism