[1] HARVARD UNIV, SCH MED, HARVARD CTR STUDY KIDNEY DIS, 75 FRANCIS ST, BOSTON, MA 02115 USA
[2] BRIGHAM & WOMENS HOSP, DEPT MED, DIV RENAL, MOLEC PHYSIOL & BIOPHYS LAB, BOSTON, MA 02115 USA
[3] WASHINGTON UNIV, MED CTR, SCH MED, DEPT CELL BIOL & PHYSIOL, ST LOUIS, MO 63110 USA
[4] UNIV MARYLAND, DEPT PHYSIOL, BALTIMORE, MD 21201 USA
[5] BRIGHAM & WOMENS HOSP, DEPT MED, DIV ENDOCRINE & HYPERTENS, BOSTON, MA 02115 USA