Mild to Moderate Ulcerative Colitis

• The First Affiliated Hospital，Sun Yat-sen University — Guangzhou, Guangdong, China
• The Sixth Affiliated Hospital, Sun Yat-sen University — Guangzhou, Guangdong, China
• Huizhou First Hospital — Huizhou, Guangdong, China
• Nanfang Hospital, Southern Medical University — Guangzhou, Guanmgdong, China

• Wolfson Medical Center — Holon, Israel

• Cork University Hospital — Cork, Co. Cork, Ireland
• Mater Misercordiae University Hospital — Dublin, Co. Dublin, Ireland
• St. James's Hospital — Dublin, Co. Dublin, Ireland
• Clinical Science Institute — Galway, Co. Galway, Ireland

Not specified