Twin gestation, dichorionic/diamniotic (two placentae, two amniotic sacs)
twin gestation, dichorionic/diamniotic (two placentae, two amniotic sacs)
Twin gestation, dichorionic/diamniotic (two placentae, two amniotic sacs)
twin gestation, dichorionic/diamniotic (two placentae, two amniotic sacs)