Fig. 2From: A multicenter survey of first-line treatment patterns and gene aberration test status of patients with unresectable Stage IIIB/IV nonsquamous non-small cell lung cancer in China (CTONG 1506)Doublet chemotherapy regimens of patients with unresectable Stage IIIB/IV nonsquamous non-small cell lung cancer, n = 631. a Platinum agents. b Nonplatinum chemotherapy-backbone agentsBack to article page