Diagnosis of Placenta Prævia by Angiography

Kerr J M M Moir J C . (1949) Operative Obstetrics. 5th ed. London; p 771.

Macafee C H G . (1946) Proc. R. Soc. Med. 39, 551.

Walker A L Wrigley A J Organe G S W Chamberlain R N Martin W J . (1963) Report on Confidential Enquiries into Maternal Deaths in England and Wales 1958–1960. HMSO, London; p 8.