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- Daly-Jones E., Hollingsworth J. and Sepulveda W. (1996) Vasa praevia : second trimester diagnosis using colour ¯ ow imaging. British Journal of Obstetrics and Gynaecology , 103 , 284-286.
- Dougall A. and Baird C. H. (1987) Vasa praevia : a report of 3 cases and review of literature. British Journa l of Obstetrics and Gynaecol ogy, 94, 712-715.
- Ogita S., Ishiko O., Matsumoto M., Hasegawa H. and Sugawa T. (1976) A simplified method for measuring fetal hemoglobin. Obstetrics and Gynecolo gy, 48, 237-239.
- Correspo ndence to: Dr P. N. Nwagbara , Department of Obstetrics and Gynaecology, South Warwickshir e Hospitals NHS Trust,
- Lakin Road, Warwick CV34 5BW, UK.
- 0144-3615/97/030284-01 $9.50 ãInstitute of Obstetrics and Gynaecology Trust, 1997
Journal of Obstetrics and Gynaecology
Volume 17, 1997 - Issue 3