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van Diemen HA, Polman CH, van Dongen TM, van Loenen AC, Nauta JJ, Taphoorn MJ, van Walbeek HK, Koetsier JC.van Diemen HA, et al. Among authors: taphoorn mj.Ann Neurol. 1992 Aug;32(2):123-30. doi: 10.1002/ana.410320203.Ann Neurol. 1992.PMID: 1510353Clinical Trial.