Table 1. Accuracy of sentinel node biopsy in early breast cancer.

Trial/author	Year	SLN identification (%)	Sensitivity (%)	False negativity (%)
Veronesi et al. [24]	2003	98.5	91.2	8.8
ALMANAC [25]	2006	98.0	93.3	6.7
Sentinella-GIVOM [26]	2008	95.0	83.3	16.7
SNAC [27]	2009	94.0	94.5	5.5
Canavese et al. [29]	2008	98.6	77.1	9.1
NSABP B-32 [28]	2007	97.3	90.2	9.8

SLN=sentinel lymph node.