1. Medical Engineering and Technology Center Shandong First Medical University and Shandong Academy of Medical Sciences Taian P. R. China
2. Qingdao 3E3D Tech. Co. Ltd. Qingdao P. R. China
3. Health Care Department Taishan Sanatorium of Shandong Province Taian P. R. China
4. Medical Science and Technology Innovation Center Shandong First Medical University and Shandong Academy of Medical Sciences Ji'nan P. R. China