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3. Cerebrospinal fluid rhinorrhoea and empty sella;BRISMAN, R.; HUGHES, J.E.O.; MOUNT, L.A.;Journal of Neurosurgery,1969
4. Die Morphologie der Sella turcica und ihre Beziehungen zur Hypophyse;BUSCH, W.,1951
5. Endocrine studies in patients with the 'empty sella syndrome';CAPLAN, R.H.; DOBBEN, G.D.;Archives of Internal Medicine,1969