Abstract

References
1.
Baird
D
. (1950 ) Combined Textbook of Obstetrics and Gynæcology for Students and Practitioners . Edinburgh ; p 271
2.
Gossage
A M
Price
F W
. (1908–09 ) Proceedings of the Royal Society of Medicine Sect. Med . 151
3.
Truelove
S C
Witts
L J
. (1955 ) British Medical Journal
ii , 1041
