Assertion: potassium nitrate's value | /r/HasProperty | 400 to 700 mg/day
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Source sentences:
text: In all groups, treatment that included Potassium Citrate was associated with a sustained increase in urinary citrate excretion from subnormal values to normal values (400 to 700 mg/day), and a sustained increase in urinary pH from 5.6 to 6.0 to approximately 6.5.