Acute encephalitis in primary Sjögren's syndrome: A case report and literature review. - Higashida-Konishi, Misako; Akiyama, Mitsuhiro; Shimada, Tatsuya; Hama, Satoshi; Takei, Hiroshi; Izumi, Keisuke; Oshima, Hisaji; Okano, Yutaka (Modern Rheumatology Case Reports, 2022)