Prevalence of common upper gastrointestinal diseases in Chinese adults aged 18–64 years

Hong Yang, Mei Zhang, Hui Li, Zhengjing Huang, Yuanyuan Sun, Wenbo Li, Chun Li, Xuzhen Qin, Yanhong Wang, Xiao Zhang, Zhenping Zhao, Limin Wang, Li Wang, Jiaming Qian, Jiaming Qian