Both MAD2L1 and BUB1 expression were found to be higher in tumor than in adjacent non-tumor tissues (5.97±0.66 versus 5.36±0.38 for MAD2L1, 6.80±1.14 versus 5.50±0.74 for BUB1, respectively, and both P<0.0001) in this database. Here, BUB1 is linked to neoplasm.