China experts consensus on the diagnosis and treatment of advanced stage primary lung cancer (2016 version). Issue 1 (7th November 2016) - Shi, Yuankai; Sun, Yan; Yu, Jinming; Ding, Cuimin; Wang, Ziping; Wang, Changli; Wang, Dong; Wang, Cunde; Wang, Zheng; Wang, Mengzhao; Zhi, Xiuyi; Lu, You; et al.