Birgit Schoeberl Merrimack Pharmaceuticals, 101 Binney Street, Cambridge, Massachusetts 02142 (bschoeberlmerrimackpharma.com). Dr. Schoeberl is the director of Network Biology at Merrimack Pharmaceuticals. Together with Ulrik Nielsen, she helped formulate Merrimack's research and development platform, Network Biology. Dr. Schoeberl received an M.S. degree in chemical engineering from the University of Karlsruhe, Germany, and a Ph.D. degree from the Max-Planck-Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany.

Ulrik B. Nielsen Merrimack Pharmaceuticals, 101 Binney Street, Cambridge, Massachusetts 02142 (unielsenmerrimackpharma.com). Dr. Nielsen is co-founder and vice president of research at Merrimack Pharmaceuticals. He directs all major functions and activities within the company's research and drug discovery programs. Dr. Nielsen received his Ph.D. degree in molecular biology from the University of Copenhagen, Denmark.

Ricardo Paxson The MathWorks Inc., 3 Apple Hill Drive, Natick, Massachusetts 01760 (paxmathworks.com). Mr. Paxson is head of the Systems Biology group at The MathWorks Inc. He manages a team of engineers developing tools for modeling and simulation of biological systems. Mr. Paxson received B.S. and M.S. degrees in aeronautical engineering from the Massachusetts Institute of Technology.