BackgroundAcute graft-versus-host disease (aGVHD) is a severe and fatal complication after orthotopic liver transplantation (OLT). Clinical manifestations of severe aGVHD can resemble drug-induced Stevens–Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). and there are also various medications. such as antibiotics and immunosuppressants. https://parisnaturalfoodes.shop/product-category/branched-chain-amino-acids/