Impact of Patient-General Practitioner Short-Messages-Based Interaction on the Control of Hypertension in a Follow-up Service for Low-to-Medium Risk Hypertensive Patients: A Randomized Controlled Trial. - Mario Pascual Carrasco; Carlos Hernández Salvador; Pilar G. Sagredo; J. Márquez Montes; M. A. González de Mingo; Juan A. Fragua; Montserrat Carmona Rodriguez; L. M. Garcia-Olmos; Fernando Garcia-Lopez; Adolfo Muñoz Carrero; Jose Luis Monteagudo (IEEE Trans. Inf. Technol. Biomed., 2008)