[Diagnosis of gestational age in the 20th week of pregnancy].
D000886:Anthropometry; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D014463:Ultrasonography; D014599:Uterus / Q000033:anatomy & histology
Diagnosi di epoca gestazionale entro la 20a settimana di gravidanza.