Abstract
References
1.British Medical Journal (1971 ) iv , 183
2.
Crisp
A H
Toms
D A
, (1972 ) British Medical Journal
i , 334 –338
3.
Landon
J
Greenwood
F C
Stamp
T C B
Wynn
V
, (1966 ) Journal of Clinical Investigation
45 , 437
4.
Marks
V
Howarth
N
Greenwood
F C
, (1965 ) Nature (London)
208 , 687
5.
Marshall
J C
Fraser
T R
, (1971 ) British Medical Journal
iv , 590
6.
Russell
G F M
, (1970 ) Modern Trends in Psychological Medicine
2 , 13
7.
Wolff
H P
Vescei
P
Krttck
F
Roscher
S
Brown
J J
Dusterdieck
G O
Lever
A F
Robertson
J I S
, (1968 ) Lancet
i , 257 –261