L Loffredo, F Violi, FL Fimognari, R Cangemi, PS Sbrighi, F Sampietro, G Mazzola, VN Di Lecce, A D’Angelo. The association between hyperhomocysteinemia and ischemic stroke in patients with non-valvular atrial fibrillation. Haematologica 2005;90(9):1205-1211; https://doi.org/10.3324/%x.