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ACADEMIC STRESS IN ORAL DISEASES OF STUDENTS СтатьяMkhoyan G., Velichko E., Said O.B., Serebrov D.Journal of International Dental and Medical Research. Том 14. 2021. С. 790-796
EVALUATION OF THE CHANGES OF SALIVARY PH AMONG DENTAL STUDENTS DEPENDING ON THEIR ANXIETY LEVEL СтатьяSaid O.B., Razumova S., Velichko E., Tikhonova S., Barakat H.European Journal of Dentistry. Том 14. 2020. С. 605-612