Karki, S., Tiwari, B. R., Ghimire, P., Maharjan, A., & Rajkarnikar, M. (2009). Seroprevalence of Specific Antibodies to Treponema pallidum in Blood Donors. Journal of Nepal Health Research Council, 6(2), 98-101. https://doi.org/10.3126/jnhrc.v6i2.2212