TY  - RPRT
TI  - Continual highly significant decrease in caries prevalence among 14-year-old Norwegians.
AU  - J M Birkeland
AU  - J Bragelien
PY  - 1987
DO  - 10.3109/00016358709098851
UR  - https://pubmed.ncbi.nlm.nih.gov/3475946/
ID  - 3475946
ER  -