主题词：Organ Transplantation Techniques and Outcomes; Renal Transplantation Outcomes and Treatments; Organ Donation and Transplantation; Transplantation: Methods and Outcomes; Liver Disease and Transplantation; Organ and Tissue Transplantation Research; Renal and Vascular Pathologies; Pancreatic function and diabetes; Liver Disease Diagnosis and Treatment; Dialysis and Renal Disease Management; Tissue Engineering and Regenerative Medicine; T-cell and B-cell Immunology; Mechanical Circulatory Support Devices; COVID-19 Clinical Research Studies; SARS-CoV-2 and COVID-19 Research; Palliative Care and End-of-Life Issues; Immune Cell Function and Interaction; Hepatocellular Carcinoma Treatment and Prognosis; Pluripotent Stem Cells Research; Xenotransplantation and immune response; Biomedical Ethics and Regulation; Reconstructive Surgery and Microvascular Techniques; Viral Infections and Immunology Research; Diabetes Management and Research; Cytomegalovirus and herpesvirus research