https://scholar.google.com/scholar_lookup?title=Nutrition+and+Oral+Mucosal+Diseases&author=Thomas,+D.M.&author=Mirowski,+G.W.&publication_year=2010&journal=Clin.+Dermatol.&volume=28&pages=426–431&doi=10.1016/j.clindermatol.2010.03.025&pmid=20620760