Ferri A, Nencini M, Battistini S, Giannini F, Siciliano G, Casali C, Damiano MG, Ceroni M, Chiò A, Rotilio G, Carrì MT. Activity of protein phosphatase calcineurin is decreased in sporadic and familial amyotrophic lateral sclerosispatients. Journal of Neurochemistry. 2004 Jul 27;90(5):1237–42. doi: 10.1111/j.1471-4159.2004.02588.x.