Tác giả. Willingness to pay and some related factors for the periodical health check-up services for the elderly in 2017 at Dau Tieng Ditrict Health Center, Binh Duong province, Vietnam. JHDS [Internet]. 5 Tháng Chạp 2017 [cited 10 Tháng Sáu 2026];1(02). Available at: https://jhds.invatech.com.vn/index.php/jhds/article/view/26