Abstract

References
1.
Green
N
Iba
G
Smith
W R
(1975 ) Cancer
35 , 1633 –1640
2.
Jackson
B T
(1976 ) Proceedings of the Royal Society of Medicine
69 , 683 –686
3.
Joslin
C A F
Smith
C W
Mallik
A
(1972 ) British Journal of Radiology
45 , 257 –270
4.
Maruyama
Y
Van Nagell
J R
Utley
J
Vider
M L
Parker
J C
(1974 ) Radiology
112 , 699 –703
5.
O'Connell
D
Joslin
C A F
Howard
N
Ramsey
N W
Liversage
W E
(1967 ) British Journal of Radiology
40 , 882 –887
6.
Palmer
J A
Bush
R S
(1976 ) Surgery
80 , 458 –464
7.
Snelling
M D
Yarnold
J R
Lambert
H E
(1979 ) Clinical Radiology (in press)
8.
Wellwood
J M
Jackson
B T
(1973 ) British Journal of Surgery
60 , 814 –818
