We wish to retract the paper entitled "Hypovitaminosis D and Decreased Bone Mineral Density in Amyotrophic Lateral Sclerosis" [Eur Neurol 1997; 37: 225-229] by Y. Sato, Y. Honda, T. Asoh, M. Kikuyama, K. Oizumi as a -result of concerns about data integrity and scientific misconduct which have been brought to our attention. For further information, see also http://retractionwatch.com/2016/11/09/analysis-casts-doubt-on-bone-researchers-body-of-work/. J. Bogousslavsky, Editor-in-Chief.
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