TY  - RPRT
TI  - [Caries frequency in school children].
AU  - U Fritsche
AU  - G Hetzer
AU  - S Strein
AU  - W E Wetzel
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/1817404/
ID  - 1817404
ER  -