Prospectively Tracking DiseaseCourse and Treatment Changes in Neuromyelitis Optica Using NMOBase a Global Online Registry Ilya Kister Tamar Bacon Vahid Shaygannejad JyhYung Hor Raed Alroughani Shannon Haas Murat Terzi Cavit Boz Javier Olascoaga Pamela McCombe Yara Fragoso AlessandraLugaresi Patrizia Sola Steve Vucic EugenioPucci Talal Al Harbi Seyed Aidin Sajedi Juan Ignacio Rojas Liliana Patrucco EdgardoCristiano Jose Alberto Suarez MagdaliniTsolaki Bruce Taylor Gerardo Iuliano Paschalis Devranis Mark Marriott HelmutButzkueven