TY  - RPRT
TI  - Graphing indexes reduces plaque.
AU  - R W Barrickman
AU  - O J Penhall
PY  - 1973
DO  - 10.14219/jada.archive.1973.0616
UR  - https://pubmed.ncbi.nlm.nih.gov/4518563/
ID  - 4518563
ER  -