[1] BAYLOR UNIV,MED CTR,KIMBERLY H COURTWRIGHT & JOSEPH W SUMMERS METAB D,DALLAS,TX
[2] UNIV ARIZONA,COLL MED,HLTH SCI CTR,DEPT PEDIAT,TUCSON,AZ
[3] UNIV HOSP AMSTERDAM,ACAD MED CTR,DEPT PEDIAT,AMSTERDAM,NETHERLANDS
[4] OREGON HLTH SCI UNIV,DEPT MOLEC & MED GENET,PORTLAND,OR 97201
[5] HOP ST JUSTINE,DEPT PEDIAT & BIOCHEM,MONTREAL H3T 1C5,PQ,CANADA
[6] HOP ST JUSTINE,MED GENET SERV,MONTREAL H3T 1C5,PQ,CANADA
[7] UNIV ARIZONA,COLL MED,CTR HLTH SCI,DEPT PATHOL,TUCSON,AZ
[8] TUCSON MED CTR,DEPT PATHOL,TUCSON,AZ