About the Authors

Michelle Rook

Affiliation Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California San Francisco, San Francisco, California, United States of America

Juan Vargas

Affiliations Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America, Department of Radiology, University of California San Francisco, San Francisco, California, United States of America

Aaron Caughey

Affiliation Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America

Peter Bacchetti

Affiliation Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America

Philip Rosenthal

Affiliations Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California San Francisco, San Francisco, California, United States of America, Department of Surgery, University of California San Francisco, San Francisco, California, United States of America

Laura Bull

lbull@medsfgh.ucsf.edu

Affiliation Liver Center Laboratory and Institute for Human Genetics, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MR LB PR JV. Performed the experiments: MR. Analyzed the data: MR PB PR LB. Wrote the paper: MR. Critical revision of manuscript: JV AC PB PR LB.