AFP and hepatocellular carcinoma: The diagnostic accuracy of the serum exosomal miR‐4661‐5p (AUC = 0.923), miR‐1269a (AUC = 0.684), and miR‐25 (AUC = 0.812) in diagnosing early‐stage HCC show markedly superior AUR values than serum AFP (AUC = 0.541) [101].