Quang Đẳng, N. 2025. EVALUATE THE ROLE OF D-DIMER IN THE DEEP VENOUS THROMDOSIS DIAGNOSIS IN THE ELDERLY PATIENT WITH HIGH – AVERAGE RISK IN WELLS SCORE. Journal of Health and Aging. 1, 4 (Oct. 2025), 116–121. DOI:https://doi.org/10.63947/bvtn.v1i4.19.