addition of 0.2 eq/kg diet of chloride , sulfate or phosphate as sodium salts ( phosphate was an equal molar mixture of mono- and dibasic sodium phosphates ) resulted in a reduction in silica urinary calculi ( p less than 0.05 ) by dietary chloride ( 15 % incidence ) and phosphate ( 5 % incidence ) but not by sulfate ( 35 % incidence ) .
C0074757
phosphate
C0031603
phosphate