Prognostic significance of the combined expression pattern of NGF and HO1. A. Kaplan-Meier survival analysis for overall survival and relapse-free survival between the NGF-/HO1-, the NGF-/HO1+, and the NGF+/anyHO1 subgroups of breast carcinoma patients. B. An algorithm for the sub-grouping of breast carcinoma patients into three sub-groups according to the expression patterns of NGF and HO1. 10 ysr; ten-year survival rate.