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. 2017;1(02). Truy cập Tháng Sáu 10, 2026. https://jhds.invatech.com.vn/index.php/jhds/article/view/26