Parapakpenjune, Surapan. “Haemophilia A: A Comparison of Early Bleeding Therapy With Factor VIII Concentrate 250 Unit and 500 Unit”. Journal of Health Science of Thailand 22, no. 3 (December 6, 2017): 493–501. Accessed December 6, 2025. https://thaidj.org/index.php/JHS/article/view/863.