[1] UNIV MINNESOTA HOSP & CLIN, DEPT PEDIAT, BOX 94, 420 DELAWARE ST SE, MINNEAPOLIS, MN 55455 USA
[2] UNIV MINNESOTA HOSP & CLIN, DEPT LAB MED & PATHOL, MINNEAPOLIS, MN 55455 USA
[3] UNIV MINNESOTA HOSP & CLIN, DEPT PEDIAT NEUROL & MED, MINNEAPOLIS, MN 55455 USA
[4] VARIETY CLUB CHILDRENS HOSP, MINNEAPOLIS, MN USA