Osteogenesis imperfecta : a translational approach to brittle bone disease / editor: Jay R. Shapiro, MD, Department of Bone and Osteogenesis Imperfecta, Kennesy Krieger Institute, Johns Hopkins University, Baltimore, MD, USA ; associate editors: Peter H. Byers, MD, PhD, Department of Pathology, University of Washington, Seattle, WA, USA, Francis H. Glorieux, MD, PhD, Shriners Hospital for Children, Department of Human Gene, Montreal, QC, Canada, Paul D. Sponseller, MD, Department of Orthopedic Surgery, Johns Hopkins School of Medicine, Baltimore, MD, USA