About the Authors

David Dingli

To whom correspondence should be addressed. E-mail: dingli@fas.harvard.edu

Affiliations Division of Hematology, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America, Program for Evolutionary Dynamics, Harvard University, Cambridge, Massachusetts, United States of America

Jorge M. Pacheco

Affiliations Program for Evolutionary Dynamics, Harvard University, Cambridge, Massachusetts, United States of America, Centro de Física Teórica e Computacional e Departamento de Física da Faculdade de Ciências, Lisboa, Portugal

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JP DD. Analyzed the data: JP DD. Wrote the paper: JP DD