Assertion: fluoride | /r/HasProperty | removed with 70 weeks
Facets:
value: in the crystal structures
type: LOCATION
value: slowly
type: MANNER
value: in the bone matrix
type: LOCATION
value: for children
type: TRANSITIVE-OBJECT
Source sentences:
text: Once fluoride is incorporated into the bone, especially in the crystal structures or the bone matrix, it can be slowly removed with a half-life of 120 weeks for adults and 70 weeks for children .