Fig. 5From: The combination of blue dye and radioisotope versus radioisotope alone during sentinel lymph node biopsy for breast cancer: a systematic reviewForest plots showing the pooled false-negative rate, and the comparison between dual tracers and radioisotope alone in false-negative rate. a pooled false-negative rate b Forest plot of ORs showing that the combination of blue dye and radioisotope did not significantly decrease the false-negative rate when compared with radioisotope aloneBack to article page