000 00265 a2200109 4500
005 20220607100946.0
022 _a00223592
245 _aJournal of Periodontology
260 _aChicago
_c1981
_b American Academy of Periodontology
490 _vVol.52
942 _2lcc
_cCR
999 _c22979
_d22979