Trace elements.
D000293:Adolescent; D000818:Animals; D002648:Child; D003731:Dental Caries / Q000453:epidemiology / Q000517:prevention & control*; D004032:Diet; D006801:Humans; D008982:Molybdenum / Q000502:physiology; D012643:Selenium / Q000502:physiology; D012987:Soil / Q000032:analysis; D014131:Trace Elements / Q000502:physiology*; D014639:Vanadium / Q000502:physiology; D014867:Water / Q000032:analysis
D012987:Soil; D014131:Trace Elements; D014639:Vanadium; D014867:Water; D008982:Molybdenum; D012643:Selenium