Author N Duration Result Ribeiro et al. [21] 39 1-2yr 61% 5yr DFS Zhou  et al. [25] 32 5yr 100% 10yr OS Fogh et al. [22] 42 5yr 100 Xu et al. [27] 20 99 5yr <5yr 80% 10yr 50% 10 yr DFS = Disease-free survival OS = Overall survival

Table 2: Results of adjuvant treatment of MBC by tamoxifen.