1. Investigations of permeability of placenta with the help of elliptocytes;Hedenstedt;Acta Med Scand Suppl,1946
2. Investigations on the permeability of placenta with aid of red blood corpuscles tagged with radioactive phosphorus;Naeslund;Acta Med Scand Suppl,1946
3. Placental transmission of erythrocytes;Mengert;Am J Obstet Gynecol,1955
4. Transfer of maternal erythrocytes across the human placenta;Smith;Obstet Gynecol,1961
5. The transmission of chromium-51 tagged maternal erythrocytes from mother to fetus;Zarou;Am J Obstet Gynecol,1964