GCG and papillary renal cell carcinoma: Conversely, higher GCG expression was correlated with better survival in renal clear cell carcinoma (HR = 0.43, logrank p < 0.001) and thyroid carcinoma (HR = 0.59, logrank p = 0.045), with a similar trend observed in renal papillary cell carcinoma (HR = 0.43, logrank p = 0.17).