Thị Kim Cương L, Thị Ngọc Hạnh H, Thị Hoài C, Đình Dần Đặng, Thế Hoàng N, Thanh Vy N, Thị Kim Tiến N, Thị Vân C. INVESTIGATION OF THE NEUTROPHIL-TO-LYMPHOCYTE RATIO IN ELDERLY PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE AT THONG NHAT HOSPITAL. JHA [Internet]. Vietnam; 2025 Jun. 15 [cited 2025 Aug. 9];1(2):130–135. https://tcsuckhoelaohoa.vn/bvtn/article/view/50 doi: 10.63947/bvtn.v1i2.19