Blavatnik School of Computer Science, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel, Sackler Institute of Molecular Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel, and Basic Research Program, SAIC-Frederick, Inc. Center for Cancer Research Nanobiology Program NCI-Frederick, Frederick, Maryland 21702 (At 2009-10-05)
