Ang, Mark Angelo, Nelson Geraldino, Ariel Vergel de Dios, and Marimin Abad-Lapuebla. “Non-Parametric Clinical Laboratory Reference Interval Estimation in Volunteer Blood Donors : An Example for Prothrombin Time and Partial Thromboplastin Time”. PJP 7, no. 2 (December 7, 2022): 23–37. Accessed July 24, 2024. https://philippinejournalofpathology.org/index.php/PJP/article/view/341.