Polin, Richard A. Pediatric secrets / Richard Polin AND Mark F. Ditmar - 6th ed - Philadelphia : Elsevier, 2011 - ix, 717p.[4]: ill. Includes index ISBN: 97880323310307 Subjects--Topical Terms: Pediatric-- examinations, questions etc.Pediatrics LC Class. No.: RJ 48 POL 2011