Xi-Liang Wang1, Jia-Hui Liu2, De-Gang Mo3. 1. Department of Gastroenterology, Liaocheng People's Hospital Affiliated to Graduate School of Shandong First Medical University, Liaocheng, Shandong Province, People's Republic of China. 2. Department of Cardiology, Liaocheng People's Hospital Affiliated to Graduate School of Shandong First Medical University, Liaocheng, Shandong Province, People's Republic of China. 3. Department of Cardiology, Liaocheng People's Hospital Affiliated to Graduate School of Shandong First Medical University, Liaocheng, Shandong Province, People's Republic of China. 1285296769@qq.com.