Abstract

References
1.
Ask-Upmark
E.
Ingvar
D.
(1950 ) Acta med. scand. , 138 , 15 .
2.
Hamby
W. B.
(1948 ) J. Amer. med. Ass. , 136 , 522 .
3.
Hyland
H. H.
(1950 ) Arch. Neurol. Psychiat., Chicago , 63 , 61 .
4.
Magee
C. G.
(1943 ) Lancet , ii , 497 .
5.
Mount
L. A.
(1951 ) J. Amer. med. Ass. , 146 , 693 .
6.
Taylor
A. B.
Whitfield
A. G. W.
(1936 ) Quart. J. Med. , 5 , 461 .
7.
Walton
J. N.
(1952 ) Brit. med. J. , ii , 802 .
8.
Wolfe
H. R. I.
(1953 ) Brit. J. Surg. , 50 , 319 .
9.
Henson
R. A.
Croft
P. B.
(1956 ) Quart. J. Med. , 25 , 53 .
10.
Meadows
S. P.
(1951 ) In: Modern Trends in Neurology. Ed.
Feiling
A
. London.
