About the Authors

Jessica R. McCann

Affiliation The Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, United States of America

Joseph W. St. Geme III

stgemeiiij@email.chop.edu

Affiliation The Department of Pediatrics, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.