[1] UNIV LEICESTER,DEPT GENET,LEICESTER LE1 7RH,LEICS,ENGLAND
[2] BIRMINGHAM MATERNITY HOSP,CLIN GENET UNIT,BIRMINGHAM B15 2TG,W MIDLANDS,ENGLAND
[3] MASSACHUSETTS GEN HOSP E,NEUROGENET LAB,BOSTON,MA
[4] MARIE CURIE RES INST,SURREY RH8 0TL,ENGLAND
[5] UNIV CHICAGO,MED CTR,CHICAGO,IL 60637
[6] UNIV LONDON UNIV COLL,DEPT GENET & BIOMETRY,GALTON LAB,LONDON NW1 2HE,ENGLAND
[7] UNIV UTAH,ECCLES INST HUMAN GENET,DEPT HUMAN GENET,SALT LAKE CITY,UT 84112
[8] BRIGHAM & WOMENS HOSP,DIV EXPTL MED,BOSTON,MA 02115