title: [Ultrasonics during the 1st half of pregnancy. Clinico-pathological correlation].
mesh_terms: D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011262:Pregnancy Trimester, Second; D014463:Ultrasonography
vernacular_title: Ecosonografía durante la primera mitad del embarazo. Correlación clínico-patológica.