Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector8078310.17816/kazmj80783Research ArticleG. Katz (Med. Klin., № 33, 1931)GalantYves.info@eco-vector.com15031932322-32522522109202121092021Copyright © 2021, Eco-Vector2021<p>(Med. Klin., No. 33, 1931) in a group of cases of chronic arthritis established cerebral disorders, the clinical picture of which is surprisingly similar in its similarity to the painful phenomena in encephalitis.</p>Kazan Medical archiveКазанский медицинский архив