Evaluation of the efficacy of a topical sialogogue spray containing malic acid 1% in elderly people with xerostomia: A double-blind, randomized clinical trial

1. Gõmez-Moreno, G.
2. Cabrera-Ayala, M.
3. Aguilar-Salvatierra, A.
4. Guardia, J.
5. Ramírez-Fernández, M.P.
6. González-Jaranay, M.
7. Calvo-Guirado, J.L.