1 Department of Hernia and Abdominal Wall Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.
2 Department of Hernia and Abdominal Wall Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China. Electronic address: 201262005933@email.sdu.edu.cn.