[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[2] Univ Pittsburgh, Dept Pathol, Pittsburgh, PA 15261 USA
[3] Univ Pittsburgh, Dept Computat Biol, Pittsburgh, PA 15261 USA
[4] Northeastern Univ, Ctr Complex Network Res, Boston, MA 02115 USA
[5] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
[6] Northeastern Univ, Dept Biol, Boston, MA 02115 USA
[7] Northeastern Univ, Dept Comp Sci, Boston, MA 02115 USA
[8] Dana Farber Canc Inst, Ctr Canc Syst Biol, Boston, MA 02115 USA
[9] Integrated Genom Inc, Chicago, IL 60612 USA