{"paper_id":"06724adf-f966-4e48-a34c-6c7c9e505423","body_text":"The authors certify that they have obtained all appropriate patient consent forms. In the form, the patients have given their consent for their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.\n\nThis study was supported by grants from the National Key Technology R&D Program (No. 2015BAI13B06) and the National Natural Science Foundation of China (No. 21507003).\n\nThere are no conflicts of interest.","source_license":"CC0","license_restricted":false}