TY - BOOK AU - Moore,Keith L. AU - Persaud,T.V.N. TI - Before we are born: essentials of embryology and birth defects SN - 072169408X (pbk.) AV - QM601 .M757 2003 U1 - 612.6/4 21 PY - 2003/// CY - Philadelphia PB - Saunders KW - Embryology, Human KW - Abnormalities, Human KW - Embryology KW - Abnormalities N1 - Includes bibliographical references (p. 402-420) and index ER -