Risk factors for proton pump inhibitor refractoriness in Chinese patients with non-erosive reflux disease

le Niu, Xiao-Ping, Yu, Bao-Ping, Wang, Yun-Dong, Han, Zhen, Liu, Shao-Fen, He, Chi-Yi, Zhang, Guo-Zheng, Wu, Wan-Chun
Foilsithe 2013