Department of Genetics.|Department of Genetics.|Department of Genetics.|Department of Health Sciences Research.|Department of Health Sciences Research.|Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN 55905, USA.|Department of Computer Science, Johns Hopkins University, Baltimore, MD 21218, USA.|Department of Statistics, Stanford University, Stanford, CA 94305, USA.|Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN 55905, USA.|Department of Genetics.|Department of Genetics.|Department of Health Research & Policy.|Department of Health Research & Policy.