Sirikhaeng P, Ungcharoen R. [2026-06-22] Prevalence and Associated Factors of Opisthorchis viverrini Infection in Nakhon Phanom, Thailand. Res Med J [internet]. 2026 Jun. 22 [cited 2026 Sep. 15];:e280013. available from: https://he02.tci-thaijo.org/index.php/ramajournal/article/view/280013