Jangsrisuk, Jongdee. “Ultrasound Evaluation of Biliary Obstruction in Chaoprayayomraj Hospital, Suphan Buri”. Journal of Health Science of Thailand 17, no. Supplement III (November 8, 2018): SIII593–604. Accessed December 11, 2025. https://www.thaidj.org/index.php/JHS/article/view/5099.