1. Examination of the placenta;Benirschke;Obstet Gynecol,1961
2. The Pathology of the Human Placenta;Benirschke,1967
3. Recurrent maternal floor infarction, a preventable cause of fetal death;Clewell;Am J Obstet Gynecol,1983
4. Pathology of the Placenta;Fox,1978
5. Risk Factors in Pregnancy and Diseases of the Fetus and Newborn;Naeye,1983