Abstract
References
1.
Brunton
F J
Eban
R E
, (1960 ) Clinical Radiology
11 , 65 –67
2.
Elwood
P C
Pitman
R G
Jacobs
A
Entwistle
C C
, (1964 ) Lancet
ii , 716
3.
Jacobs
A
Kilpatrick
G S
, (1964 ) British Medical Journal
ii , 79
4.
Kelly
A B
, (1919 ) Journal of Laryngology and Otology
34 , 285
5.
Kirchenberger
W
Flett
R L
, (1946 ) Journal of Laryngology and Otology
61 , 396 –398
6.
New
P F J
, (1951 ) British Journal of Radiology
24 , 410
7.
Paterson
D R
, (1919 ) Journal of Laryngology and Otology
34 , 289
8.
Seaman
W B
, (1967 ) Radiology
89 , 32 –38
9.
Trowell
H C
, (1960 ) Noninfective Diseases in Africa . Arnold , London
10.
Vinson
P O
, (1922 ) Minnesota Medicine
5 , 107 –108
11.
Wynder
E L
Fryer
J H
, (1958 ) Annals of Internal Medicine
49 , 1106 –1128