CD274 and non-small cell lung carcinoma: In Norway, the national lung cancer group (NLCG) and the governmental commission for approval and remuneration of new drugs have sequentially introduced monotherapy with pembrolizumab in first-line treatment for patients with high PD-L1 expression, monotherapy with atezolizumab in second-line for patients with PD-L1 positive tumors, and combined pembrolizumab/platinum/pemetrexed in first-line for patients with non-squamous NSCLC.