TY  - RPRT
TI  - Ultrasonic root planing.
AU  - B A Pearlman
PY  - 1982
DO  - 10.1111/j.1834-7819.1982.tb04058.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7052038/
ID  - 7052038
ER  -