000 00268 a2200109 4500
005 20220430021831.0
022 _a0020 7500
245 _aJournal of orthodontics
260 _aChicago
_bFederation of orthodontic Association
_c1982
490 _vVol. 20
942 _2lcc
_cCR
999 _c21079
_d21079