[Sodium, potassium and chlorine--how to read its figures].
D001774:Blood Chemical Analysis / Q000592:standards; D002713:Chlorine / Q000097:blood*; D006801:Humans; D011188:Potassium / Q000097:blood*; D012964:Sodium / Q000097:blood*
D002713:Chlorine; D012964:Sodium; D011188:Potassium