Ratanasiri, Thawalwong, Banchong Udomthavornsuk, and Prasit Pengsaa. 2013. “Clinical Characteristics of Malignant Gestational Trophoblastic Diseases in Srinagarind Hospital and Problems in Management”. Srinagarind Medical Journal 3 (3):191-98. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13466.