[Routine ultrasound examination during pregnancy--is it really necessary?].
Achiron
R
R
Mashiach
S
S
D003955:Diagnostic Tests, Routine; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D016216:Ultrasonography, Prenatal