Hong Chen, Jing-Lun Tian, Lin Cai, Ben-Qiang Zeng, Shaojun Zheng, Xiao-Bing Tian, En-Quan Zeng
Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, China.
People's Hospital of Wenjiang District, Chengdu 611130, China.
Iran J Public Health. 2016 Oct;45(10):1367-1368.