Abstract

References
1.
Bloom
H. J. G.
(1959 ) Proc. R. Soc. Med. , 52 , 495 .
2.
Brick
I. B.
(1955 ) Arch, intern. Med. , 96 , 26 .
3.
Requarth
W.
Roberts
S.
(1956 ) Arch. Surg., Chicago , 73 , 682 .
4.
Strickland
P.
(1954 ) Brit. J. Radiol. , 27 , 630 .
5.
Todd
T. F.
(1938 ) Surg. Gynec. Obstet. , 67 , 617 .
6.
Wigby
P. E.
(1943 ) Amer. J. Roentgenol. , 49 , 307 .
