Haresh Kirpalani is Professor of Pediatrics at the Children's Hospital of Philadelphia, Philadelphia, PA, USA, and Associate Member of the Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada.
Monica Epelman is Assistant Professor of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
John Mernagh is Associate Professor of Radiology, McMaster University, Hamilton, Ontario, Canada.