A reliability study of colour-Doppler sonography for the diagnosis of chronic cerebrospinal venous insufficiency shows low inter-rater agreement
Maurizio A Leone, Olga Raymkulova, Ausiliatrice Lucenti, Alessandro Stecco, Laura Bolamperti, Lorenzo Coppo, William Liboni, Gianandrea Rivadossi, Giuseppe Zaccala, Maurizio Maggio, Fabio Melis, Claudia Giaccone, Alessandro Carriero, Piergiorgio Lochner
BMJ Open Nov 2013, 3 (11) e003508; DOI: 10.1136/bmjopen-2013-003508