TY  - RPRT
TI  - Comparison of several groups.
AU  - J S Bulman
AU  - J F Osborn
PY  - 1989
DO  - 10.1038/sj.bdj.4806832
UR  - https://pubmed.ncbi.nlm.nih.gov/2713185/
ID  - 2713185
ER  -