Michal Grat, MD, PhD, Associate Professor, Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw 02-097, Poland. Education and Academic Degrees: 2016 Medical University of Warsaw, Assistant Professor; 2013 Medical University of Warsaw, PhD based on a doctoral thesis: "Analysis of serum alpha-fetoprotein concentration in patients with hepatocellular carcinoma treated with liver transplantation", Supervision: Prof. Marek Krawczyk, MD, PhD; 2006-2012 Medical University of Warsaw, Medical studies, MD.