a large impact on patients' quality of life. Recently, a gain-switched 311-nm titanium:
sapphire laser (TSL) was developed and demonstrated similar therapeutic efficacy to
excimer laser in the treatment of vitiligo. Objective: We evaluated the effectiveness and
safety of the 311-nm TSL in the treatment of AA. Methods: We conducted an open trial and
enrolled 16 AA patients from June 2017 to December 2018. A 311-nm TSL laser treatment …