Soysa, Niroshani Surangika, Jaime Aparecido Cury, and Chrisman Neil Roshan Alexander Alles. 2018. “Fluoride Concentration and Stability in Commonly Used Dentifrices in Sri Lanka”. Brazilian Journal of Oral Sciences 17 (November). Limeira, SP:e181244. https://doi.org/10.20396/bjos.v17i0.8654067.