Abstract
References
1.
Lüscher
E.
(1954 ) J. Laryng. , 68 , 211 .
2.
MacKenzie
M.
(1871 ) The Use of the Laryngoscope.
3rd edition . London .
3.
MacKenzie
M.
(1888 ) J. Laryng. , 2 , 462 .
4.
Otty
J. H.
(1957 ) J. Laryng. , 71 , 257 .
5.
Stevenson
R. S.
Guthrie
D.
(1949 ) A History of Otolaryngology.
Edinburgh .