Davaakhuu, G. et al. 2021. Development of serological assay for detection of antibodies in the N protein of SARS-CoV-2 in human sera in Mongolia. Proceedings of the Mongolian Academy of Sciences. 61, 03 (Sep. 2021), 16–23. DOI:https://doi.org/10.5564/pmas.v61i03.1819.