Global Ulcerative Colitis Market by Drug Type (Anti-Inflammatory Drugs, Anti-TNF biologics, Immunosuppressant, Calcineurin Inhibitors, and Other Drug Types), Disease Type (Ulcerative Proctitis, Proctosigmoiditis, Left-sided Colitis, Pancolitis or Universal Colitis, and Fulminant Colitis), Regional Forecasts 2021-2027