Abstract

References
1.
Cassel
G A
Morley
J E
(1974 ) South African Medical Journal
48 , 2319 –2320 .
2.
Ferguson
W R
Laird
J D
Cranley
K
(1981 ) Journal of Nuclear Medicine
22 , 88 .
3.
Powell-Jackson
P R
Melia
W
Canalese
J
(1982 ) Quarterly Journal of Medicine
201 , 79 –88 .
4.
Prowse
C V
Hornsey
V
Ruckley
C V
(1982 ) Thrombosis and Haemostasis
47 , 132 –135 .
5.
Warren
R L
Schlant
R C
Wenger
N K
(1972 ) Gastroenterology
62 , 200 .
