SLA and autoimmune hepatitis: Patients with isolated SLA antibodies (approximately 5% of the AIH patients) have been classified as having AIH type 3 [16, 94, 145], although it has been suggested that this form of SLA-associated AIH should be considered a variant of AIH type 1 due to the similarities of this condition to the genetic, clinical, and serological findings that are associated with AIH type 1 [26, 108, 147].