Fig. 1From: Artificial neural network models to predict nodal status in clinically node-negative breast cancerStudy population. The flow chart shows the original patient population, excluded patients, and details of the surgical axillary nodal staging procedures. Abbreviations: SLNB, Sentinel lymph node biopsy; ALND, Axillary lymph node dissection. * Palpable adenopathy or matted lymph nodes at the time of diagnosisBack to article page