The price of ferritin assay cannot be generalized and varies slightly depending on the level of the city and the size of the hospital. Usually, in provincial capitals and tertiary hospitals, the price of ferritin assay is relatively expensive, ranging from 178.5 to 198.6 RMB. Usually in second-tier cities and third-tier B-class and second-tier A-class hospitals, the price of ferritin measurement is relatively cheap, ranging from 156.5 to 172.9 yuan. In third-tier cities and third-class hospitals, the price of ferritin measurement is relatively the cheapest, ranging from 118.5-132.8 RMB. Also depending on the way and method of ferritin determination, such as enzyme-linked immuno-complex method and chemical fluorescence luminescence method of determination, the specific price varies slightly.