1. Chorioangiosis - an important placental sign of neonatal morbidity and mortality;ALTSHULER, G.;Archives of Pathology and Laboratory Medicine,1984
2. Prenatal diagnosis of placenta tumor by ultrasound;ASOKAN, S.; CHADALAVADA, K.; GARDI, R.; SASTRY, V.;Journal of Clinical Ultrasound,1978
3. Account of a tumor found in the substance of the human placenta;CLARK, J.;Philosophical Transactions of the Royal Society of London,1798
4. Chorioangioma ofthe placenta - report of two cases with ultrasound study in one;DAO, A.H.; ROGERS, C.W.; WONG, S.W.;Obstetrics & Gynecology,1981
5. Pathology ofthe placenta. In Major Problems in Pathology vol;FOX, H.;VII,1978