EGFR and renal cell carcinoma: Although either high EGFR-AS1 or EGFR in RCC predicted a poor prognosis (Fig. 6d–g), RCC patients with both elevated EGFR-AS1 and EGFR expression displayed an even worse prognosis(Fig. 6j, k), indicating the superior prognostic value of combining the two parameters vs. using EGFR-AS1 or EGFR alone.