[1] UNIV TEXAS, SW MED CTR,DEPT INTERNAL MED,ROOM CS7102, 5323 HARRY HINES BLVD, DALLAS, TX 75235 USA
[2] PARKLAND MEM HOSP & AFFILIATED INST, CARDIAC CATHETERIZAT LAB, DALLAS, TX USA
[3] UNIV TEXAS, SW MED CTR, DEPT MOLEC GENET, DALLAS, TX 75235 USA
[4] UNIV TEXAS, SW MED CTR, DEPT BIOCHEM, DALLAS, TX 75235 USA
[5] UNIV TEXAS, HLTH SCI CTR, CTR DEMOG & POPULAT GENET, HOUSTON, TX 77225 USA