Yamano P, Wanaratwichit C. Factors influencing health service utilization behavior among the elderly in Uttaradit Province. JPHSR [internet]. 2025 Aug. 29 [cited 2026 Sep. 29];7(2):89-101. available from: https://he01.tci-thaijo.org/index.php/JPHSR/article/view/274936