Laura Hewitson1,2,*, Brian J. Lopresti3, Carol Stott4, N. Scott Mason3 and Jaime Tomko1  1Department of Obstetrics and Gynecology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; 2Thoughtful House Center for Children, Austin, TX, USA; 3Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; 4Independent Chartered Scientist, Cambridge, UK; This longitudinal, case-control [...]