The estimation of calcium and magnesium.
D002118:Calcium / Q000032:analysis*; D002136:Calcium, Dietary; D006801:Humans; D008274:Magnesium / Q000032:analysis*; D012044:Regression Analysis
D002136:Calcium, Dietary; D008274:Magnesium; D002118:Calcium
CALCIUM/determination; MAGNESIUM/determination