title: Use of hydrogen peroxide to identify internal opening of anal fistula and perianal abscess.
mesh_terms: D000038:Abscess / Q000175:diagnosis*; D000328:Adult; D001004:Anus Diseases / Q000175:diagnosis*; D006801:Humans; D006861:Hydrogen Peroxide / Q000009:adverse effects; D007223:Infant; D012003:Rectal Fistula / Q000175:diagnosis*
chemical_list: D006861:Hydrogen Peroxide