TY - RPRT TI - A two-stage validation study for determining sensitivity and specificity. AU - T D Tosteson AU - L Titus-Ernstoff AU - J A Baron AU - M R Karagas PY - 1994 DO - 10.1289/ehp.94102s811 UR - https://pubmed.ncbi.nlm.nih.gov/7851324/ ID - 7851324 ER -