TY  - RPRT
TI  - Statistical issues in periodontal research.
AU  - T A DeRouen
AU  - P P Hujoel
AU  - L A Mancl
PY  - 1995
DO  - 10.1177/00220345950740110301
UR  - https://pubmed.ncbi.nlm.nih.gov/8530733/
ID  - 8530733
ER  -