Abstract

References
1.
Bishop
P. M. F.
(1949 ) Proc. R. Soc. Med. , 42 , 655 .
2.
Campbell
M. F.
(1954 ) Urology. Philadelphia.
3.
Carver
J. H.
(1956 ) Studies on Fertility. Oxford.
4.
Gross
R. E.
Jewett
T. C.
(1956 ) J. Amer. med. Ass. , 160 , 634 .
5.
Handfield-Jones
R. M.
Porritt
A. E.
(1957 ) Essentials of Modern Surgery. Edinburgh.
6.
MacCollum
D. W.
(1935 ) Arch. Surg., Chicago , 31 , 290 .
7.
Robinson
J. N.
Engle
E. T.
(1954 ) J. Urol. , 71 , 726 .
8.
Romanis
W. H. C.
Mitchiner
P. H.
(1952 ) Surgery. London.
9.
Snyder
W. H.
Jr.
Chaffin
L.
(1955 ) J. Amer. med. Ass. , 157 , 129 .
10.
Sohval
A. R.
(1954 ) J. Urol. , 72 , 693 .
