TY  - RPRT
TI  - Subgingival microflora in bleeding and nonbleeding pockets.
AU  - D A Baab
AU  - E J Opsvig
PY  - 1986
DO  - 10.1111/j.1600-051x.1986.tb00884.x
UR  - https://pubmed.ncbi.nlm.nih.gov/3534003/
ID  - 3534003
ER  -