1. Ahmed, A. G., and Klopper, A. 1984. Detection of subclinical abortion by assay of pregnancy specific glycoprotein. Br. Med. J. 1: 113.
2. Aladjem, S. 1967. Correlation of pregnancy wastage with hypoplasia of the placental syncytium: Study by phase contrast microscopy. Obstet. Gynecol, 30: 408–413.
3. Aladjem, S. 1975. Examination of fresh villi, in: The Placenta and Its Maternal Supply Line. P. Gruenwald, ed. Medical and Technical Publishing, Lancaster, England, pp. 221–231.
4. Alberman, E., Polani, P. E., Roberts, J. A. F., Spicer, C. C. Elliott, M., Armstrong, E., and Dhadial, R. K. 1972. Parental X irradiation and chromosome constitution in their spontaneously aborted foetuses. Ann. Hum. Genet
36: 185–194.
5. Alexander, I., Anthony, F., and Letch worth, A. T. 1982. Placental protein profile and glucose studies in a normal pregnancy with extremely low levels of human placental lactogen: Case report. Br. J. Obstet. Gynaecol
89: 241–243.