Edokwe, G., I. Ojule, and A. Tobin. “Trend of Mantoux Positivity in a Tertiary Health Institution in Nigeria: A Secondary Data Analysis”. International Journal of Innovative Research in Medical Science, Vol. 4, no. 01, Jan. 2019, p. 01 to 04, doi:10.23958/ijirms/vol04-i01/536.