Abstract
References
1.
Afifi
A M
Banwell
G S
Bennison
R J
Boothby
K
Griffiths
P D
Huntsman
R G
Jenkins
G C
Smith
R G Lewin
McIntosh
J
Qayum
A
Russell
I Ross
Whittaker
J N
(1966 ) Brit., med. J.
i , 1021
2.
Beutler
E
Larsh
S E
Gurner
C W
(1960 ) Ann. intern. Med.
52 , 378
3.
Beveridge
B R
Bannerman
R M
Evanson
J M
Witts
L J
(1965 ) Quart. J. Med.
34 , 145
4.
Callender
S T
Spray
G H
(1962 ) Brit. J. Hæmat.
8 , 230
5.
Davidson
L S P
Donaldson
G M M
Lindsay
S T
McSorley
J G
(1943 ) Brit. med. J.
ii , 95
6.
Elwood
P C
(1964 ) Brit. J. prev. soc. Med.
18 , 81
7.
Elwood
P C
Jacobs
A
(1966 ) Brit. med. J.
i , 20
8.
Elwood
P C
Wood
M M
(1966 ) Brit. J. prev. soc. Med. (in press)
9.
Hobson
W
Blackburn
E K
(1953 ) Brit. med. J.
i , 647
10.
Jacobs
A
Kilpatrick
G S
Withey
J L
(1965 ) Postgrad, med. J.
41 , 418
11.
Kilpatrick
G S
(1961 ) Brit. med. J.
ii , 1736
12.
Kilpatrick
G S
Hardisty
R M
(1961 ) Brit. med. J.
i , 778
13.
Kilpatrick
G S
Withey
J L
(1965 ) Scand. J. Hæmat.
2 , 220
14.
McAlpine
S G
Douglas
A S
Robb
R A
(1957 ) Brit. med. J.
ii , 983
15.
Parsons
P L
Withey
J L
Kilpatrick
G S
(1965 ) Practitioner
195 , 656
16.
Pryce
J D
(1960 ) Lancet
ii , 333
17.
Semmence
A
(1959 ) Brit. med. J.
ii , 1153
18.
Wood
M M
Elwood
P C
(1966 ) Brit. J. prev. soc. Med.
20 , 117