title: [Changes in the relationship between the placenta and os uteri internum during pregnancy].
mesh_terms: D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D011877:Radionuclide Imaging; D013997:Time Factors; D014599:Uterus / Q000033:anatomy & histology*
vernacular_title: Zmĕny vztahu placenty k vnitrní brance v průbĕhu tĕhotenství.