Plasma aldosterone is related to severity of obstructive sleep apnea in subjects with resistant hypertension.
Pratt-Ubunama MN, Nishizaka MK, Boedefeld RL, Cofield SS, Harding SM, Calhoun DA. Plasma aldosterone is related to severity of obstructive sleep apnea in subjects with resistant hypertension. Chest. 2007 Feb; 131(2):453-9.