[1] Univ Maryland, Sch Med, Pathol, Baltimore, MD 21201 USA
[2] Univ Maryland, Dept Math & Stat, Baltimore County, MD USA
[3] Univ Maryland, Dept Human Genet & Genom Med, Baltimore, MD 21201 USA
[4] Univ Maryland, Sch Med, Dept Med, Baltimore, MD 21201 USA
[5] Univ Maryland, Sch Med, Greenebaum Canc Ctr, Baltimore, MD 21201 USA