Kr. Ivanova, S. (2017) “A Review on Dried Blood Spots (DBS) as Alternative, Archival Material for Detection of Viral Agents (Measles, Mumps, Rubella, Hepatitis B Virus)”, American Scientific Research Journal for Engineering, Technology, and Sciences, 30(1), pp. 161–172. Available at: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/2804 (Accessed: 12 September 2025).