00844naa#a2200241#i#450# EN\\bibl\43824 20240502063953.4 2077-7566 20210506b2021####ek#y0engy0150####ca RUS RU ORAL VIRAL LOAD OF SARS-COV-2 AND EXACERBATION OF CHRONIC PERIODONTAL DISEASE IN PATIENTS WITH NOVEL CORONAVIRUS INFECTION (COVID-19) Journal article Ekaterinburg TIRAZH Publishing House 2021 5 с. Journal article local Медицина. Охрана здоровья. 61 RUS Modina Tamara Nikolaevna Zinecker Daria Tilovna Kharitonova Maya A. Mahdi Mohaimen Mhmoud Mahdi Mamaeva Elena Vladimirovna Usmanova Irina Nikolaevna dental-press.ru