1. Nikeea Copeland-Linder, PhD, MPH* 1. Division of General Pediatrics and Adolescent Medicine, Johns Hopkins University, Baltimore, Md Welcome to a new series in Pediatrics in Review ! The Pediatrics Review and Education Program (PREP The Curriculum®) includes Pediatrics in Review (PIR) and PREP Self-Assessment and is based on the American Board of Pediatrics’ (ABP) 3,700 content specifications. These content specifications are the focus of the Board's Program for Maintenance of Certification. PREP The Curriculum® commits to covering all of the 3,700 content specifications over a 5-year period, helping the pediatrician prepare for the cognitive examination based on these knowledge statements. In late 2008, the ABP added 26 new content specifications on research and statistics. To cover these, we introduce a new series. Clinician researchers from the Johns Hopkins University Division of General Pediatrics and Adolescent Medicine will be writing brief case-based or practice-oriented articles to address these topics. We hope that these articles will be useful for readers in evaluating the scientific literature and adopting evidence-based practice. We welcome your feedback on this new endeavor!— Tina L. Cheng, MD, MPH, Associate Editor