TY  - RPRT
TI  - The periodontal disease problem. A comparison between industrialised and developing countries.
AU  - T Pilot
PY  - 1998
DO  - 10.1111/j.1875-595x.1998.tb00710.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9779102/
ID  - 9779102
ER  -