Twin gestation, monochorionic/diamniotic (one placenta, two amniotic sacs)
twin gestation, monochorionic/diamniotic (one placenta, two amniotic sacs)
Twin gestation, monochorionic/diamniotic (one placenta, two amniotic sacs)
twin gestation, monochorionic/diamniotic (one placenta, two amniotic sacs)