TY - BOOK AU - Kurjak,Asim AU - Chervenak,Frank A. TI - Donald school textbook of ultrasound in obstetric and gynecology SN - 1842142577 PY - 2003/// CY - Boca Raton PB - Parthenon Pub. KW - Ultrasonography, Prenatal KW - methods KW - Pregnancy Complications KW - ultrasonography ER -