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Filippi M, Martinelli V, Locatelli T, Medaglini S, Poggi A, Visciani A, Scotti G, Canal N, Comi G.Filippi M, et al. Among authors: martinelli v.J Neurol. 1990 Jun;237(3):171-6. doi: 10.1007/BF00314590.J Neurol. 1990.PMID: 2370565
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