Kappa index: real-world study for assessing cut-off values that provide the best accuracy for multiple sclerosis diagnosis in patients with CIS.

Veiga-González J L, Monreal E, Espiño M, Chico-García J L, Fernández-Velasco J I, Rodríguez-Jorge F, Villarrubia N, Rodero-Romero A, Sainz de la Maza S, Masjuan J, et al.