title: Calcium balance in pregnancy.
mesh_terms: D000293:Adolescent; D000328:Adult; D002118:Calcium / Q000378:metabolism* / Q000652:urine; D002136:Calcium, Dietary; D005243:Feces / Q000032:analysis; D005260:Female; D005333:Fetus / Q000378:metabolism; D006706:Homeostasis; D006801:Humans; D008274:Magnesium / Q000652:urine; D008431:Maternal-Fetal Exchange; D009584:Nitrogen / Q000652:urine; D009751:Nutritional Requirements; D010758:Phosphorus / Q000652:urine; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D013054:Spectrophotometry, Atomic; D013057:Spectrum Analysis
chemical_list: D002136:Calcium, Dietary; D010758:Phosphorus; D008274:Magnesium; D009584:Nitrogen; D002118:Calcium