Subjects: WATER supply; WATER fluoridation; RESERVOIRSBRAZIL
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Subjects: WATER supply; DENTAL caries; ENVIRONMENTAL monitoringBRAZIL
Subjects: FLUOROSIS; PHYSIOLOGICAL effects of fluorides; CAVITY preventionBRAZIL
Subjects: WATER fluoridation; CAVITY prevention; BRAZIL. Ministry of HealthSAO Paulo (Brazil); BRAZIL