Abstract

References
1.
Allan
J G
Gerskowitch
V O
Russel
R J
. (1973 ) Gut
14 , 423 –424 .
2.
Condon
J
Robinson
V
Suleman
M I
Fan
V S
McKeown
M D
. (1975 ) British Journal of Surgery
62 , 309 –312 .
3.
Faber
R G
Parkin
J V
Whitfield
P
Hobsley
M
. (1975 ) Gut , 6 , 343 –346 .
