Saksiriwuttho, P., T. Rattanasiri, R. Komwilaisak, P. Kleebkaow, C. Duangkum, K. Kongwattanakul, and S. Chaiyarach. “Pregnant Women’s Expectations and Knowledge Regarding Ultrasound Scanning at Srinagarind Hospital in Thailand”. Srinagarind Medical Journal, vol. 36, no. 4, Aug. 2021, pp. 377-81, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/251791.