acute graft rejection/co [Complication]; acute liver failure/su [Surgery]; acute on chronic liver failure/su [Surgery]; antibody mediated rejection; Asia; blood group ABO incompatibility; blood relative; cadaver; Child Pugh score; cholestasis/co [Complication]; comparative study; contact examination; coronavirus disease 2019/ep [Epidemiology]; desensitization; disease severity; drug pulse therapy; follow up; graft survival; groups by age; health care availability; health care personnel; health care system; human; immunoadsorption; immunosuppressive treatment; letter; liver transplantation; living related donor; Model For End Stage Liver Disease Score; morbidity; mortality; multiple organ failure; pandemic; patient care; plasma exchange; plasmapheresis; real time polymerase chain reaction; resource allocation; sepsis; Severe acute respiratory syndrome coronavirus 2; swabbing; hemagglutinin/ec [Endogenous Compound]; mycophenolic acid; rituximab; unclassified drug; isohemagglutinin/ec [Endogenous Compound]