Please note: patients who do not meet the above criteria because of Gilberts syndrome are still eligible History of Gilberts syndrome Known Gilberts disease Patients with known Gilberts disease Known Gilberts syndrome Personal history of Gilberts syndrome Diagnosis of Gilberts disease Patients with known Gilberts syndrome History of Gilberts syndrome Patient must not have a diagnosis of Gilberts disease No known Gilberts syndrome or known homozygosity for UGATA* polymorphism Documented Gilberts syndrome History of Gilberts syndrome Patients must not have known Gilberts syndrome History of Gilberts syndrome History of Gilberts syndrome History of Gilberts syndrome Participants with known disorders due to a deficiency in bilirubin glucuronidation (e.g. Gilberts syndrome) Participants with known disorders due to a deficiency in bilirubin glucuronidation (e.g. Gilberts syndrome) Bilirubin < to . x normal (except Gilberts Syndrome) History of Gilberts syndrome Patients who have a diagnosis of Gilberts disease History of Gilberts syndrome Known history of Gilberts syndrome Patients with a known history of Gilberts syndrome History of Gilberts syndrome History of Gilberts syndrome Known history of chronic liver disease (other than Gilberts syndrome) Patients with known or suspected Gilberts syndrome at the time of study enrollment