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We thank Dr. Paolo Prontera for critically reading the manuscript and for the useful suggestions.
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LG received travel grants from Biogen-Idec, Biogen, Novartis, Teva, Genzyme and Almirall to attend national and international conferences. MDF participated to advisory boards of Biogen Idec, Teva and Bayer, received travel grants from Bayer Schering, Biogen-Dompé, Biogen-Idec, Merck-Serono, Novartis and Sanofi-Aventis to attend national and international conferences and speaker and writing honoraria from Biogen Idec, Novartis and Sanofi-Genzyme. PC received/receive research support from Bayer Schering, Biogen-Dompé, Boehringer Ingelheim, Eisai, Lundbeck, Merck-Serono, Novartis, Sanofi-Aventis, Sigma-Tau and UCB Pharma. He also receives/received support from Ricerca Corrente IRCCS, Ricerca Finalizzata IRCCS, European Community Grant REPLACES (restorative plasticity at corticostriatal excitatory synapses), the Italian Minister of Health, and AIFA (Agenzia Italiana del Farmaco). AMi, MDG, PS, AMa, EC and MTD report no conflicts of interests.
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L. Gaetani and A. Mignarri equally contributed to the work.
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Gaetani, L., Mignarri, A., Di Gregorio, M. et al. Multiple sclerosis and chronic progressive external ophthalmoplegia associated with a large scale mitochondrial DNA single deletion. J Neurol 263, 1449–1451 (2016). https://doi.org/10.1007/s00415-016-8120-5
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DOI: https://doi.org/10.1007/s00415-016-8120-5