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Prognostic nomogram for metastatic breast cancer patients with factors, including age, metastasis-free interval (MFI), location of metastasis site, and hormone receptor (HR) status. Points are defined based on the prognostic contribution of the factors (top). Points summing the contribution of age, MFI, location of metastasis site, and HR status are translated to the survival probability at 1 and 3 years (bottom). CNS, central nervous system.
