1. From the Department of Medicine, University of Helsinki, Helsinki, Finland (P.J.L., K.P., H.S., M.V., L.T., K.K.); the Research Center for Genetic Medicine, Children’s National Medical Center, Washington, DC (K.M.B., B.B., E.A.D., D.A.S.); the National Human Genome Research Institute, National Institutes of Health, Bethesda, MD (K.M.B., D.A.S.); Transgenomic, Inc, Gaithersburg, MD (J.M.D., M.M.); and the Department of Biology, University of Padova, Padova, Italy (N.T.).