GRAFTLESS SOFT TISSUE AUGMENTATION WITH VOLUMETRIC-STABLE COLLAGEN MATRIX: CASE SERIES AND EARLY RESULTS ArticleAdzhieva A., Khabadze Z., Zoryan A., Bagdasarova I., Omarova K., Verdiyan S., Nalchajyan H., Mordanov O., Shilyaeva E., Nazarova D., Kotelnikova A.Journal of International Dental and Medical Research. Том 14. 2021. С. 1127-1131