TY - RPRT TI - Relative observer accuracy for dichotomized variables. AU - L M Irwig AU - H T Groeneveld AU - J P Pretorius AU - E Hnizdo PY - 1985 DO - 10.1016/0021-9681(85)90125-0 UR - https://pubmed.ncbi.nlm.nih.gov/4055978/ ID - 4055978 ER -