Figure 2From: New models and online calculator for predicting non-sentinel lymph node status in sentinel lymph node positive breast cancer patients Tree diagrams for RP-ROC and CART. As CART is able to impute missing data, it was calculated for all SLN positive patients, n = 285. RP-ROC requires complete data and was calculated for patients with known angiolymphatic invasion status, n = 213 (Bay Area SLN Database).Back to article page