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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1968 1
1971 1
1972 1
1978 1
2023 0

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Primary enlarged "empty" sella.
Overbeek WJ, Front D, Penning L. Overbeek WJ, et al. Neurochirurgia (Stuttg). 1971 May;14(3):110-5. doi: 10.1055/s-0028-1090564. Neurochirurgia (Stuttg). 1971. PMID: 5119531 No abstract available.
Isotope investigation of hydrocephalus.
Overbeek WJ. Overbeek WJ. Psychiatr Neurol Neurochir. 1968 Jan-Feb;71(1):99-103. Psychiatr Neurol Neurochir. 1968. PMID: 5303210 No abstract available.