title: [2 cases of myasthenia gravis associated with rheumatoid arthritis - a study of autoimmune diseases].
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000276:immunology*; D001327:Autoimmune Diseases; D005260:Female; D006801:Humans; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000150:complications / Q000276:immunology*