00542naa#a2200181#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200006800102210004800170215001000218608002700228686005800255700002700313856002000340EN\\bibl\3513420240501163149.3##a2077-7566##a20200212b2020####ek#y0engy0150####ca0#aRUS##aRU1#aAGE ASPECTS OF TREATMENT OF TEETH DISCOLORITISeJournal article1#aEkaterinburgcTIRAZH Publishing Housed2020##a4 с.##aJournal article2local##aКлиническая медицина. 76.292grnti#1aTitovagOl'ga Yur'evna4#adental-press.ru