GPT and neonatal abstinence syndrome: NAS, nonalcoholic hepatosetatosis; NASH, nonalcoholic steatohepatitis; BMI, body mass index; AST, aspartate aminotransferase; ALT, alanine aminotransferase; GGT, gamma-glutamyl transferase; ALP, alkaline phosphatase; T.bil, total bilirubin; D.bil, direct bilirubin; PTH, parathyroid hormone; Ca, calcium; P, phosphor; Mg, magnesium; TAS, total antioxidant level; TOS, total oxidant status