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Dam M, Molljer E.Dam M, et al.Acta Neurol Scand. 1968;44(5):596-611. doi: 10.1111/j.1600-0404.1968.tb05594.x.Acta Neurol Scand. 1968.PMID: 5726732No abstract available.
Dam M, Langgård H.Dam M, et al.Acta Neurol Scand. 1969;45(4):502-6. doi: 10.1111/j.1600-0404.1969.tb01260.x.Acta Neurol Scand. 1969.PMID: 5806781No abstract available.