RPS27L and breast neoplasm: We found that RPS27L levels in normal breast tissues were mainly in group 2 (12 of 32, 37%) and group 3 (10 of 32, 31.2%), with 4 samples in group 4 (12.5%), whereas most breast tumor tissues were classified into group 1 (11 of 36, 30.6%) and group 2 (18 of 36, 50%), and only one tumor tissue showed highest staining intensity (Fig. 6c).