About the Authors
Mathematical Biology, National Institute for Medical Research, London, United Kingdom
The Microsoft Research–University of Trento Centre for Computational and Systems Biology (CoSBi), Trento, Italy
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RG OS. Performed the experiments: RG OS. Analyzed the data: RG OS. Contributed reagents/materials/analysis tools: RG OS. Wrote the paper: RG OS.