TY  - RPRT
TI  - FLUCTUATION IN MARGINAL GINGIVITIS.
AU  - D R HOOVER
AU  - W LEFKOWITZ
DO  - 10.1902/jop.1965.36.4.310
UR  - https://pubmed.ncbi.nlm.nih.gov/14326698/
ID  - 14326698
ER  -