Moore, Keith L. Before we are born : essentials of embryology and birth defects / Keith L. Moore, T.V.N. Persaud. - 6th ed. - Philadelphia, Pa. : Saunders, c2003. - xv, 448 p. : ill.; 26 cm. Includes bibliographical references (p. 402-408) and index. ISBN: 072169408X Subjects--Topical Terms: Embryology.Congenital Abnormalities. National Library of Medicine Call No.: QS 604 / M784b 2003