{"0":"Detected by X-ray only.","10":"One or two incapacitating episodes per year requiring prolonged (4-6 weeks) antibiotic treatment, or three to six non-incapacitating episodes per year characterized by headaches, pain, and purulent discharge or crusting.","30":"Three or more incapacitating episodes per year requiring prolonged antibiotic treatment, or more than six non-incapacitating episodes per year.","50":"Following radical surgery with chronic osteomyelitis, or near constant sinusitis characterized by headaches, pain and tenderness, and purulent discharge or crusting after repeated surgeries."}