Abstract

References
1.
Balcerzak
S P
Greenberger
N J
. (1968 ) Nature (Lond.)
220 , 270 .
2.
Conrad
M E
. (1969 ) Gastroenterology
57 , 225 .
3.
Conrad
M E
Benjamin
B I
Williams
H L
Foy
A L
. (1967 ) Gastroenterology
53 , 5 .
4.
Conrad
M E
Weintraub
L R
Crosby
W H
. (1964 ) J. clin. Invest.
43 , 963 .
5.
Jacobs
A
Greenman
D A
. (1969 ) Brit. med. J.
i , 673 .
6.
Jacobs
A
Miles
P M
. (1969 ) Brit. med. J.
iv , 778 .
7.
Smith
J A
Drysdale
J W
Goldberg
A
Munro
H N
. (1968 ) Brit. J. Hœmat.
14 , 79 .
