[1] Natl Inst Dent & Craniofacial Res, Craniofacial & Skeletal Dis Branch, Bethesda, MD 20892 USA
[2] Natl Inst Neurol Disorder & Stroke, Neurochem Lab, Bethesda, MD 20892 USA
[3] NHGRI, Canc Genet Branch, Bethesda, MD 20892 USA
[4] NIMH, NIH, Dept Hlth & Human Serv, Bethesda, MD 20892 USA
[5] Inst Genom Res, Rockville, MD 20850 USA
[6] Craig Venter Inst, Rockville, MD 20850 USA