LEP and fibrosis: Comparison of baseline characteristics of patients with PL to exogenous leptin classified based on response with improvements in (1) HbA1c (more than 1% HbA1c reduction from baseline), (2) triglycerides (more than 30% decrease in triglycerides from baseline), and (3) liver histology (a decrease in the total NASH score of ≥2 without an increase in fibrosis)