Step-up to pediatrics / Samir S. Shah, MD, MSCE, Director, Division of Hospital Medicine, Attending Physician, Divisions of Hospital Medicine and Infectious Diseases, Cincinnati Children's Research Foundation Endowed Chair in Hospital Medicine, Cincinnati Children's Hospital Medical Center, Professor, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio ; Jeanine C. Ronan, MD, Assistant Professor of Clinical Pediatrics, Co-director, Pediatrics Clerkship, Perelman School of Medicine at the University of Pennsylvania, Attending Physician, Division of General Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania ; Brian Alverson, MD, Director, Division of Pediatric Hospital Medicine, Hasbro Children's Hospital, Associate Professor, Department of Pediatrics, The Warren Alpert School of Medicine at Brown University, Providence, Rhose Island.