Russo M, Mazzeo A, Stancanelli C, Di Leo R, Gentile L, Di Bella G, Minutoli F, Baldari S, Vita G. Transthyretin-related familial amyloidotic polyneuropathy: description of a cohort of patients with Leu64 mutation and late onset. J Peripher Nerv Syst. 2012 Dec;17(4):385–90. doi: 10.1111/j.1529-8027.2012.00436.x. PMID: 23279339.