title: Transvaginal color Doppler in early pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology Sveti Duh, Medical School, University of Zagreb, Croatia.
authors.forename: A
authors.initials: A
authors.lastname: Kurjak
mesh_terms: D000033:Abortion, Threatened / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D005333:Fetus / Q000098:blood supply*; D005865:Gestational Age; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000098:blood supply; D011247:Pregnancy / Q000502:physiology*; D012016:Reference Values; D016216:Ultrasonography, Prenatal; D014655:Vascular Resistance / Q000502:physiology