[1] St Marys Hosp, Acad Unit Med Genet, Manchester M13 0JH, Lancs, England
[2] St Marys Hosp, Reg Genet Serv, Manchester M13 0JH, Lancs, England
[3] NHGRI, Genet Dis Res Branch, NIH, Bethesda, MD 20892 USA
[4] Univ Minnesota, Dept Genet Cell Biol & Dev, Minneapolis, MN USA
[5] Univ Minnesota, Ctr Canc, Minneapolis, MN USA
[6] Albert Einstein Med Ctr, Dept Genet, Philadelphia, PA 19141 USA
[7] NHGRI, Med Genet Branch, NIH, Bethesda, MD 20892 USA
[8] NIDDKD, Genet Dev & Dis Res Branch, NIH, Bethesda, MD 20892 USA
[9] Childrens Natl Med Ctr, Div Genet, Washington, DC 20010 USA
[10] John Radcliffe Hosp, Weatherall Inst Mol Med, Oxford OX3 9DS, England
[11] Univ Utrecht, Med Ctr, Dept Med Genet, NL-3508 AB Utrecht, Netherlands
[12] Univ Minnesota, Dept Oral Pathol & Genet, Sch Dent, Minneapolis, MN USA
[13] NHGRI, Genome Technol Branch, NIH, Bethesda, MD 20892 USA
[14] Ctr Mol Med, Manchester, Lancs, England
[15] Cent Manchester & Manchester Childrens Univ Hosp, Manchester Royal Eye Hosp, Manchester, Lancs, England