Abstract

References
1.
Codling
B W
Keighley
M R B
Slaney
G
(1977 ) Surgery
82 , 625 –628
2.
Collins
W J
(1977 ) American Journal of Gastroenterology
68 , 177 –181
3.
Darke
S G
Parks
A G
Grogono
J L
(1973 ) British Journal of Surgery
60 , 169 –175
4.
Fielding
J F
Prior
P
Waterhouse
J A
(1972 ) Scandinavian Journal of Gastroenterology
7 , 3 –7
5.
Hecker
R
Sheers
R
Thomas
D
(1978 ) Medical Journal of Australia
ii , 603
6.
Hughes
R K
(1955 ) American Journal of Surgery
21 , 770 –773
7.
Lightdale
C J
Sternberg
S S
Posner
G
Sherlock
P
(1975 ) American Journal of Medicine
59 , 262 –268
8.
Morowitz
D A
Block
G E
Kirsner
J B
(1968 ) Gastroenterology
55 , 397 –402
9.
Morrison
P D
Whittacker
M
(1982 ) Clinical Oncology
2 , 271 –272
10.
Schofield
P F
(1972 ) Proceedings of the Royal Society of Medicine
65 , 49 –50
11.
Shaw
J H
Mulvaney
N
(1982 ) Australian and New Zealand Journal of Surgery
52 , 34 –36
12.
Weedon
D D
Shorter
R G
Ilstrip
D M
(1973 ) New England Journal of Medicine
289 , 1099 –1103
13.
Wyatt
A P
(1969 ) Gut
10 , 924 –927
14.
Wybburn-Mason
R
(1968 ) British Medical Journal
ii , 697
