[3D/ 4D-ultrasound in obstetrics--baby TV without diagnostics?].
Merz
E
E
D047108:Embryonic Development; D005260:Female; D047109:Fetal Development; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000379:methods* / Q000639:trends