Van Tuan N. EPIDEMIOLOGICAL RESEARCH IN HOSPITAL: KEY CONSIDERATIONS FOR DESIGN AND INTERPRETATION. JHA [Internet]. Vietnam; 2026 Feb. 27 [cited 2026 Mar. 15];2(6):1–8. https://tcsuckhoelaohoa.vn/bvtn/article/view/170 doi: 10.63947/bvtn.v2i6.1