About the Authors

Joseph C Corbo

Address address: Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America , Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, United States of America , Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts, United States of America

Constance L Cepko

To whom correspondence should be addressed. E-mail: cepko@genetics.med.harvard.edu

Affiliations Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America , Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

JCC and CLC conceived and designed the experiments. JCC performed the experiments. JCC and CLC analyzed the data. JCC contributed reagents/materials/analysis tools. JCC and CLC wrote the paper.