Serum sodium and potassium in essential hypertension.
D000075222:Essential Hypertension; D006801:Humans; D006973:Hypertension / Q000097:blood*; D011188:Potassium / Q000097:blood*; D012964:Sodium / Q000097:blood*
D012964:Sodium; D011188:Potassium
HYPERTENSION/blood; POTASSIUM/blood; SODIUM/blood