International variation in histologic grading is large and persistent feedback does not improve reproducibility.
Cramer
Stewart F
SF
D005246:Feedback; D006801:Humans; D038622:Internationality; D007668:Kidney / Q000473:pathology*; D016030:Kidney Transplantation; D015588:Observer Variation; D010336:Pathology / Q000592:standards; D015203:Reproducibility of Results; D014184:Transplantation, Homologous