[Clinical value of echography in early pregnancy].
D004622:Embryo, Mammalian / Q000502:physiology*; D005314:Embryonic and Fetal Development; D005260:Female; D005323:Fetal Monitoring / Q000379:methods*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011261:Pregnancy Trimester, First; D014463:Ultrasonography
Klinicheskoe znachenie ekhografii v rannie sroki beremennosti.