Fig. 3
From: Impact of the COVID-19 pandemic on cerebral venous sinus thrombosis in China: a comparative study
The primary risk factors for cerebral venous sinus thrombosis before and after the COVID-19 pandemic. §Autoimmune diseases include systemic lupus erythematosus, Crohn’s disease, Behcet’s disease, rheumatoid arthritis, ankylosing spondylitis, and intestinal inflammatory disease. ¶Drugs include tamoxifen, steroids, and chemotherapeutic agents