TY  - RPRT
TI  - Necrotizing ulcerative periodontitis.
AU  - M J Novak
PY  - 1999
DO  - 10.1902/annals.1999.4.1.74
UR  - https://pubmed.ncbi.nlm.nih.gov/10863377/
ID  - 10863377
ER  -