American Journal of Physiology : Renal Physiology, 308, 9, pp. F956-f966 American Journal of Physiology-Renal Physiology, 308(9), F956-F966. American Physiological Society American Journal of Physiology-Renal Physiology, 308(9), F956-F966 American Journal of Physiology : Renal Physiology, 308, F956-f966