the increment in urinary calcium ( during the second 2 hr ) following calcium citrate load ( 0.5 g calcium ) was 0.104 +/- 0.096 mg/dl glomerular filtrate ( gf ) , which was higher than that of 0.091 +/- 0.068 mg/dl gf obtained from 2.0 g calcium as calcium carbonate .
C0108101
calcium citrate
C0006675
calcium