Cycloid psychosis as a psychiatric expression of anti-NMDAR encephalitis. A systematic review of case reports accomplished with the authors' cooperation. - Giné Servén E; Boix Quintana E; Martínez Ramírez M; Guanyabens Buscà N; Muriana Batiste D; Guasp M; Torres Rivas C; Davi Loscos E; Casado Ruiz V (Brain and behavior, 2021)