TY JOUR TI COMPARATIVE RESULTS OF THE STUDY OF THE PREVALENCE OF PRECANCEROUS PATHOLOGY OF THE LIPS IN VARIOUS CLIMATIC AND GEOGRAPHICAL ZONES OF DAGESTAN REPUBLIC KW climatic and geographic zones KW statistical significance KW research KW diagnostics KW dental diseases JO Actual problems in dentistry AU Yusupova, S.A. PY 2025 IS 21 PB TIRAZH Publishing House