O. M. Ramón-Morales, W. Londoño, L. G. González-Ortíz, E. González-Patiño, N. Blandón, and N. García, “Efficacy of a dentifrice for dentine hypersensitivity containing 5.6% potassium citrate and 0.3% sodium fluoride: a randomized clinical controlled trial”, Rev Fac Odontol Univ Antioq, vol. 21, no. 2, pp. 186–197, Jun. 2010.