title: A new micro-method for Na, K, Ca, and Mg determinations in a single serum dilution by atomic-absorption spectrophotometry.
mesh_terms: D000704:Analysis of Variance; D002118:Calcium / Q000097:blood*; D008274:Magnesium / Q000097:blood*; D008722:Methods; D008832:Microchemistry; D011188:Potassium / Q000097:blood*; D012964:Sodium / Q000097:blood*; D013053:Spectrophotometry
chemical_list: D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium