Leksrisakul, P. ., T. . Chuangsuwanich, S. . Benjarassamerote, K. . Kayasud, S. . Rojananin, K. . Mangkalanond, and K. . Srisook. “Hemorrhagic Invasive Ductal Carcinoma With Immunohistological Expression of Beta-Subunit HCG : A Case Report”. Siriraj Medical Journal, vol. 53, no. 8, Aug. 2020, pp. 549-54, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245024.