Abstract

References
1.
Hodgson
H. K. Graham
. (1928 ). Journ. of Laryng. and Otol. , 43 , 92 .
2.
Law
F. M.
(1929 ). Annals of Roentgenol. , Sp. Supp. 1 , Mastoids, 2nd Ed.
3.
Le Mæe
J.
Bernard
P.
(1935 ). Bull. Soc. Belge. D'Otol. et de Rhinol. et de Laryng. , 41 , Congrés Annuel.
4.
Mayer
Ernst G.
(1930 ). “Otologische Rongendiagnostik,” Wien.
5.
Runstrom
G.
“A Roentgenological Study of Acute and Chronic Otitis Media,”
Acta Radiologica , Supp. 17.
6.
Taylor
H. K.
(1928 ). Amer. Journ. of Roentgenol. , 19 , 522 .
