F2 and hepatitis A virus infection: Laboratory data showed the following: total-bilirubin, 1.7 mg/dL; albumin, 2.4 g/dL; creatinine, 0.58 mg/dL; platelets, 67,000/μL; prothrombin, 50%; prothrombin time-international normalized ratio, 1.5; and non-B and C hepatitis.