1. Esophageal cancer in high-risk areas of China: research progress and challenges 
Yingsong Lin, MD, PhD, Yukari Totsuka, PhD, Baoen Shan, MD, PhD, Chaochen Wang, PhD, Wenqiang Wei, MD, PhD, Youlin Qiao, MD, PhD, Shogo Kikuchi, MD, PhD, Manami Inoue, MD, PhD, Hideo Tanaka, MD, PhD, Yutong He, MD, PhD 
Annals of Epidemiology 
Volume 27, Issue 3, Pages (March 2017)
DOI: /j.annepidem
Copyright © 2016 Elsevier Inc. Terms and Conditions

2. Fig. 1 Geographical locations of the four high-risk areas in China.
Annals of Epidemiology  , DOI: ( /j.annepidem )
Copyright © 2016 Elsevier Inc. Terms and Conditions