Tuitemwong, Kittipat, and Darin Arora. “Failure Rate of Methotrexate for Treatment of Ectopic Pregnancy at Lampang Hospital”. Lampang Medical Journal 44, no. 2 (December 19, 2023): 21–28. Accessed May 25, 2024. https://he01.tci-thaijo.org/index.php/LMJ/article/view/264217.