StenversH. W.: Roentgenology of the os petrosum. Arch. Radiol. and Electrol., 22, 97, 1917–1918.
2.
TaylorH. K.: The Roentgen Findings in Suppuration of the Petrous Apex. Annals of Otology, Rhinology and Laryngology, 40, 367, June, 1931.
3.
For more complete bibliography see above article by Taylor.
4.
ProfantH. J.: Gradenigo's Syndrome With a Consideration of Petrositis. Arch. of Otolaryn., 13, 347, March, 1931.
5.
FowlerE. P.Jr.: Suppuration of the Petrous Tip. J. A. M. A., 102, 1653, May. 1934.
6.
FowlerE. P.: Report of a Case of Sequestrum of the Semicircular Canals. Annals of Otology, Rhinology and Laryngology, 21, 321, June, 1912.
7.
CoatesG. M.ErsnerM. S.MeyersO.: Roentgen Changes in the Petrous Portion of the Temporal Bone Without Clinical Manifestations. Arch. Otolaryn., 20, 615, November, 1934.