1. Tumor Research and Therapy Center, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
2. Department of Pain Management, Jiading Hospital of Traditional Chinese Medicine, Shanghai 201800, P.R. China
3. Department of Experiment, Tumor Hospital Affiliated to Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
4. Department of Proctology, Jiading Hospital of Traditional Chinese Medicine, Shanghai 201800, P.R. China
5. Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China