About the Authors

Gavin Kelsey

gavin.kelsey@babraham.ac.uk

Affiliations Epigenetics Programme, The Babraham Institute, Cambridge, United Kingdom, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom

Marisa S. Bartolomei

Affiliation Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.