In the randomized clinical trial, 24 clients with RAS were being randomly divided into drug team and placebo team for being observed the occurrence of ulcer dimensions reduction, wound therapeutic and agony reduction. Compared with placebo team, drug team achieved recover of ulcer in the main 10 times of procedure, https://maoecrystalb24578.look4blog.com/68526588/the-basic-principles-of-sbe-β-cd