Abstract
References
1.
Friedmann
I
. (1955 ) J. Laryng.
69 , 588 .
2.
Friedmann
I
. (1956 ) J. clin. Path.
9 , 229 .
3.
Hoople
G D
. (1950 ) Laryngoscope, St Louis
60 , 315 .
4.
Senturia
B H
. (1963 ) Proc. R. Soc. Med.
56 , 687 .
5.
Singleton
J D
. (1956 ) Laryngoscope, St Louis
66 , 293 .
6.
Stevens
D M
. (1962 ) Lancet
ii , 216 .
7.
Suehs
O W
. (1952 ) Laryngoscope, St Louis
62 , 998 .