Topical NAVS naphthalan for the treatment of oral lichen planus and recurrent aphthous stomatitis: A double blind, randomized, parallel group study.

Retrospective registration of this trial was conducted in ClinicalTrials.gov on September 30, 2016; trial registration number: NCT02920658. https://clinicaltrials.gov/ct2/show/NCT02920658?term=NAVS&draw=2&rank=4.