Ethics approval and consent to participate
This research was reviewed and approved by Human Trial Ethics Review Committee of Shanghai General Hospital. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. All participants were approached by a research nurse and provided a detailed explanation of the study’s purpose and procedures. Informed consent was received from all patients prior to their inclusion in this study.