2 1 50 ROBERT M. KLIEGMAN, MD Primary Author Bonita F. Stanton, MD Primary Author Nina F. Schor, MD, PhD Primary Author Joseph W. St Geme III, MD Primary Author Richard E. Behrman, MD Primary Author mixed material 9780323353076 Philadelphia Elsevier Science Ltd. 2016 nelson_textbook_of_pediatric_20th_ed-min.PNG.PNG KAREN J. MARCDANTE, MD Primary Author ROBERT M. KLIEGMAN, MD Primary Author ABIGAIL M. SCHUH, MD, MMHPE Primary Author mixed material 9780323775632 Philadelphia Elsevier Science Ltd. 2023 nelson_essentials_of_pediatrics_9th_ed-min.PNG.PNG