“EVALUATING FRONTAL SINUS OPACIFICATION SEVERITY USING THE LUND-MACKAY SCORE BASED ON ANATOMICAL VARIANTS OF POSTERIOR FRONTAL RECESS CELLS THROUGH IMAGING ANALYSIS”. 2026. Vietnam Journal of Community Medicine 67 (English Version No 1, 2026). https://doi.org/10.52163/yhc.v67iE1.5248.