TY - BOOK AU - Moore, Keith L. AU - Persaud, T. V. N. TI - Before we are born: essentials of embryology and birth defects SN - 072169408X PY - 2003/// CY - Philadelphia, Pa. PB - Saunders KW - Embryology KW - Congenital Abnormalities N1 - Includes bibliographical references (p. 402-408) and index ER -