TY - BOOK AU - Monteagudo,Ana AU - Timor-Tritsch,Ilan E. TI - Ultrasound and multifetal pregnancy SN - 1850709866 PY - 1998/// CY - New York PB - Parthenon Publishing KW - Pregnancy, multiple KW - Ultrasonography, Prenatal KW - Pregnancy Complications KW - ultrasonography ER -