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Rasmussen, P. Proceedings of the 25th annual meeting of the Nordisk Neurokirurgisk Förening (Scandinavian Neurosurgical Society) May 31–June 2, 1973, Turku/Abo, Finland. Acta neurochir 29, 257–274 (1973). https://doi.org/10.1007/BF01406175
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DOI: https://doi.org/10.1007/BF01406175