One case demonstrated marked hyperbilirubinemia (total 8.8 mg/dL; direct 6.6 mg/dL), with liver function tests (LFTs) showing mild aspartate transaminase and alanine transaminase (AST/ALT) elevations, and renal function tests (RFTs) mildly raised. This evidence concerns the gene GPT and Hyperbilirubinemia.