https://scholar.google.com/scholar_lookup?title=Acquired+Salivary+Pellicle+and+Oral+Diseases:+A+Literature+Review&author=Chawhuaveang,+D.D.&author=Yu,+O.Y.&author=Yin,+I.X.&author=Lam,+W.Y.-H.&author=Mei,+M.L.&author=Chu,+C.-H.&publication_year=2021&journal=J.+Dent.+Sci.&volume=16&pages=523–529&doi=10.1016/j.jds.2020.10.007