Laboratory examination showed rapid progression of anemia and increased blood urea nitrogen (BUN)/creatinine ratio; hemoglobin, 6.8 g/dL; platelet count, 320,000/μL; asparate aminotransferase (AST), 136 U/L; alanine aminotransferase (ALT), 55 U/L; total bilirubin, 2.2 mg/dL; BUN, 20 mg/dL; and creatinine, 0.50 mg/dL. Here, GPT is linked to anemia (phenotype).