TY - BOOK AU - Chudleigh, Patricia. AU - Pearce, J. Malcolm TI - Obstetric ultrasound: how, why, and when SN - 0443031630 (pbk.) PY - 1986/// CY - Edinburgh ; New York PB - Churchill Livingstone KW - Pregnancy Complications KW - Prenatal Diagnosis KW - Ultrasonography N1 - Includes index; Bibliography: p. [187] ER -