Three cases of oxycephaly were extensively examined and a great variety of auditory and vestibular disturbances were found. In case IV. the microscopic-anatomical examination showed the formation of hyperostosis with narrowing of the internal auditor?; canals, partial atrophy of the ganglion spirale and vestibularc. The experiments of Mellanby-HaLL pike show that corresponding anomalies are found in cases of experimental A-avitaminosis.
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P. G. Gerlings (1947) studied this question.
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