Senaratna, D.M.Sooriyarachchi, M.R.2013-09-252013-09-252012-12Journal of the National Science Foundation of Sri Lanka, 40(4):p.321-331https://dl.nsf.gov.lk/handle/1/9925enDetermining the sensitivity and specificity of a substitute test as a diagnostic for its gold standard in the presence of severe missingnessArticle