[Water hardness and fluoridation].
D002118:Calcium; D002136:Calcium, Dietary; D005457:Fluoridation; D054879:Halogenation; D006244:Hardness; D006801:Humans; D014867:Water; D014881:Water Supply
D002136:Calcium, Dietary; D014867:Water; D002118:Calcium
CALCIUM; FLUORIDATION; WATER SUPPLY
Wasserhärte und Fluoridierung.