APA

Li Z., Zou D., Ma X., Chen J., Shi X., Gong Y., Man X., Gao L., Zhao Y., Wang R., Yan X., Dent J., Sung J. J., Wernersson B., Johansson S., Liu W. & He J. (20110119). Epidemiology of peptic ulcer disease: endoscopic results of the systematic investigation of gastrointestinal disease in China. : The American journal of gastroenterology.

Chicago

Li Zhaoshen, Zou Duowu, Ma Xiuqiang, Chen Jie, Shi Xingang, Gong Yanfang, Man Xiaohua, Gao Li, Zhao Yanfang, Wang Rui, Yan Xiaoyan, Dent John, Sung Joseph J, Wernersson Börje, Johansson Saga, Liu Wenbin and He Jia. 20110119. Epidemiology of peptic ulcer disease: endoscopic results of the systematic investigation of gastrointestinal disease in China. : The American journal of gastroenterology.

Harvard

Li Z., Zou D., Ma X., Chen J., Shi X., Gong Y., Man X., Gao L., Zhao Y., Wang R., Yan X., Dent J., Sung J. J., Wernersson B., Johansson S., Liu W. and He J. (20110119). Epidemiology of peptic ulcer disease: endoscopic results of the systematic investigation of gastrointestinal disease in China. : The American journal of gastroenterology.

MLA

Li Zhaoshen, Zou Duowu, Ma Xiuqiang, Chen Jie, Shi Xingang, Gong Yanfang, Man Xiaohua, Gao Li, Zhao Yanfang, Wang Rui, Yan Xiaoyan, Dent John, Sung Joseph J, Wernersson Börje, Johansson Saga, Liu Wenbin and He Jia. Epidemiology of peptic ulcer disease: endoscopic results of the systematic investigation of gastrointestinal disease in China. : The American journal of gastroenterology. 20110119.