Aspectos tecnicos de la fluoruracion
Trabajo presentado ante la Asociación de Salud Publica de Puerto Rico, San Juan, 6 feb. 1953
Technical aspects of fluoridation
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Vélez A., Antonio; Espinal T., Fabio; Mejia V., Raúl; Vélez A., Hernán (1970)A gravity-operated mechanism for measuring fluoride dosage is described. It would be suitable for rural areas and communities which lack the funds to purchase an electric mechanism, or which have not electricity