Punzalan, K. A., Yu, R. and Chamen, I. M. (2017) “External Quality Assessment Scheme for Transfusion Transmissible Infections among Blood Service Facilities in the Philippines, 2016”, The Philippine Journal of Pathology, 2(2), p. 36. Available at: https://www.philippinejournalofpathology.org/index.php/PJP/article/view/71 (Accessed: 25 April 2026).