Boonnithi N, Santichatngam P. The Severity of Pain during Hemorrhoidectomy under Local Anesthesia in Maharat Nakhon Ratchasima Hospital. MNRHJ [internet]. 2024 Oct. 21 [cited 2025 Jun. 11];25(3):151-6. available from: https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/2207