Affiliation: | (1) Laboratory of Kidney and Electrolyte Metabolism, National Heart, Lung and Blood Institute, National Institutes of Health, 20205 Bethesda, Maryland;(2) Present address: Physiology Department, Armed Forces Radiobiology Research Institute, 20814 Bethesda, MD;(3) Present address: Institute of Biological Chemistry A, University of Copenhagen, 13 Universitetsparken, 2100 Copenhagen Ø, Denmark |