About the Authors

Eliot C Bush

Affiliation Howard Hughes Medical Institute, Department of Human Genetics, University of Chicago, Chicago, Illinois, United States of America

Bruce T Lahn

To whom correspondence should be addressed. E-mail: blahn@bsd.uchicago.edu

Affiliation Howard Hughes Medical Institute, Department of Human Genetics, University of Chicago, Chicago, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ECB conceived and carried out the project and was chiefly responsible for writing the paper. BTL participated in critical discussions and contributed to writing the paper.