Volume 81, Issue 11 p. 1741
Letter to the Editor
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Letter to the editor

Jorma Tarkkanen

Jorma Tarkkanen

Otolaryngological Hospital, Helsinki University Central Hospital SF-00290 Helsinki, Finland

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Henry Troupp

Henry Troupp

Neurosurgical Clinic Helsinki University Central Hospital SF-00290 Helsinki, Finland

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First published: November 1971
Citations: 1
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