1. Heterotopic adrenocortical tissue within a placenta;Cox;Placenta,1980
2. Anatomical studies: vasculature of the chorionic villi;Ramsey,1980
3. The fetal adrenal gland;Serón-Ferré,1981
4. Endocrine physiology of the placenta;Simpson,1981
5. The unlabelled antibody peroxidase-antiperoxidase (PAP) method;Sternberger,1979