Affiliation: | 1. Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China. Correspondence: Sanyuan Hu (husanyuan1962@hotmail.com);2. Department of General Surgery, the Fourth Hospital of Jinan, Jinan, Shandong, China;3. Department of Bioengineering, California Medical Innovations Institute, San Diego, California, USA. |