1. Williams obstetrics;Cunningham,2001
2. Why all placentas should be examined by a pathologist in 1990;Salafia;Am J Obstet Gynecol,1990
3. The placenta in the litigation process;Benirschke;Am J Obstet Gynecol,1990
4. Placental examination in the clinical setting;Driscoll;Arch Pathol Lab Med,1991
5. Fact and fancy: what can we really tell from the placenta;Macpherson;Arch Pathol Lab Med,1991