Images in clinical medicine. Yolk sac with blood island.
Katayama
I
I
Saitama Medical School, Japan.
Kayano
H
H
D000328:Adult; D004912:Erythrocytes; D005187:Fallopian Tubes / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000000981:diagnostic imaging / Q000473:pathology*; D014463:Ultrasonography; D015017:Yolk Sac / Q000000981:diagnostic imaging / Q000196:embryology*