Assertion: elemental calcium | /r/HasProperty | expressed in mg
Facets:
value: in order to compare forms of calcium
type: PURPOSE
Source sentences:
text: In order to compare forms of calcium, elemental calcium (i.e., the amount of calcium excluding the other elements with which the calcium is combined) can be expressed in milliequivalents (mEq) or (mg) with 1 mEq equal to approximately 20 mg).