@misc{indiciae364499985c95, title = {Refractory localized "periodontitis".}, author = {Rafik A Abdelsayed and Omar Sangueza}, year = {2002}, doi = {10.1067/moe.2002.121434}, url = {https://pubmed.ncbi.nlm.nih.gov/12029277/}, note = {Source identifier: 12029277} }