title: Study of serum calcium, phosphorus and magnesium levels in newborns.
mesh_terms: D002118:Calcium / Q000097:blood*; D006801:Humans; D007231:Infant, Newborn; D008274:Magnesium / Q000097:blood*; D010758:Phosphorus / Q000097:blood*
chemical_list: D010758:Phosphorus; D008274:Magnesium; D002118:Calcium