[1] Yale Univ, Program Computat Biol & Bioinformat, New Haven, CT 06520 USA
[2] Yale Univ, Dept Mol Biophys & Biochem, POB 6666, New Haven, CT 06520 USA
[3] Univ Texas Hlth Sci Ctr Houston, Sch Biomed Informat, Ctr Precis Hlth, Houston, TX 77030 USA
[4] CALTECH, Dept Comp & Math Sci, Pasadena, CA 91125 USA
[5] Yale Univ, Dept Comp Sci, 260-266 Whitney Ave,POB 208114, New Haven, CT 06520 USA