Nelson essentials of pediatrics / Karen J. Marcdante ... [et al.]. - 6th ed. - Philadelphia, Pa. : Saunders/Elsevier, c2011. - xix, 831 p. : ill. (some col.) ; 28 cm. ISBN: 9781437706437 9780808924210 1437706436 LC Class. No.: RJ 45 / ess Dewey Class. No.: 618.92 K65N 2011