Area postrema syndrome: Frequency, criteria, and severity in AQP4-IgG–positive NMOSD by Shosha, E, Dubey, D, Palace, J, Nakashima, I, Jacob, A, Fujihara, K, Takahashi, T, Whittam, D, Leite, M, Misu, T, Yoshiki, T, Messina, S, Elsone, L, Majed, M, Flanagan, E, Gadoth, A, Huebert, C, Sagen, J, Greenberg, B, Levy, M, Banerjee, A, Weinshenker, B, Pittock, S