title: Too many confounding variables.
authors: S
authors: S
authors: Sudhindran
authors: N
authors: N
authors: Emms
authors: S
authors: S
authors: Sinha
authors: A
authors: A
authors: Kumar
mesh_terms: D006084:Graft Rejection / Q000503:physiopathology; D006085:Graft Survival; D006801:Humans; D016030:Kidney Transplantation / Q000276:immunology*; D015337:Multicenter Studies as Topic; D009399:Nephrons / Q000473:pathology*