Abstract
References
1.
Elkins
E. C.
Wakim
K. G.
(1947 ) Brit. J. phys. Med. , 10 , 163 .
2.
McAlpine
D.
Kramer
M.
Buxton
P. H.
Cowan
D. J.
(1947 ) Brit. med. J. (ii ), 1019 .
3.
Russell
W. Ritchie
(1947 ) Brit. med. J. (ii ), 1023 .
4.
Seddon
H. J.
(1947 ) Brit. med. J. (ii ), 319 .
5.
Toomey
J. A.
(1947 ) Brit. J. phys. Med. , 10 , 185 .
6.
Young
J. Z.
(1946 ) Lancet (ii ), 109 .