BIRC5 and metastatic malignant neoplasm in the lymph nodes: Furthermore, there were association between tumor stage (III+IV,+) (n=8, OR=3.83, 95%CI: 2.01-7.3, p<0.001; I2=60.2%, Pheterogeneity=0.014), lymph node metastasis (yes, +)(n=5, OR=4.19, 95%CI: 2.34-7.52, p<0.001; I2=0, Pheterogeneity=0.851) and survivin expression.