[1] CORNELL UNIV, MED CTR,NEW YORK HOSP,DEPT PEDIAT, DIV PEDIAT ENDOCRINOL, NEW YORK, NY 10021 USA
[2] BAKER MED RES INST, MELBOURNE, VIC, AUSTRALIA
[3] CHILDRENS HOSP, OAKLAND, CA 94609 USA
[4] TAWAM HOSP, AL AIN MED CTR, MINIST HLTH, AL AIN, U ARAB EMIRATES
[5] UNIV MINNESOTA, SCH MED, MINNEAPOLIS, MN 55455 USA
[6] UNIV FLORIDA, SHANDS TEACHING HOSP, DEPT NEPHROL, GAINESVILLE, FL 32610 USA
[7] HOSP SICK CHILDREN, TORONTO, ON M5G 1X8, CANADA