Abstract

References
1.
Farthing
M G
(1981 ) British Journal of Surgery
68 , 176 .
2.
Grant
A B F
(1981 ) Australian and New Zealand Journal of Surgery
51 , 77 –78 .
3.
Leslie
M D
(1983 ) British Journal of Surgery
70 , 244 .
4.
Miller
K B
Naimark
A
O'Connor
J F
Bouras
L
(1981 ) Gastrointestinal Radiology
6 , 209 –215 .
5.
Soltero
M J
Bill
A M
(1976 ) American Journal of Surgery
132 , 168 –173 .
6.
Spiro
H M
(1977 ) Clinical Gastroenterology . 2nd edn.
Macmillan , New York ; p 419 .
7.
Williams
R S
(1981 ) British Journal of Surgery
68 , 477 –480 .
