Paweł Rajewski, MD, PhD, MBA ORCID: https://orcid.org/0000-0001-9796-8840 Google Scholar: Paweł Rajewski – Google Scholar Positions and Appointments: • Professor and Rector of the University of Health Sciences in Bydgoszcz. • Provincial Consultant in Infectious Diseases for the Kuyavian-Pomeranian Voivodeship. • Head of the Department of Internal Medicine and Infectious Diseases at the Tadeusz Browicz Provincial Observation and Infectious Diseases Hospital in Bydgoszcz. • Head of the Liver Diseases, Internal Medicine, Infectious Diseases, and Metabolic Disorders Clinic at CM Gizińscy in Bydgoszcz. • Former Medical Director and Head of the Department of Internal Medicine and Hepatology at the Emil Warmiński Multispecialty Municipal Hospital in Bydgoszcz. Specializations and Certifications: • Specialist in internal medicine and infectious diseases; hepatologist and clinical transplantation specialist. • Certified lipidologist (Polish Lipidology Society). • Certified obesitologist (Polish Society for the Study of Obesity and Polish Society for Obesity Treatment). • Certificate authorizing the performance of liver elastography using the FibroScan method. Research and Clinical Activity: • Author and co-author of over 200 scientific publications, primarily in the fields of metabolic disorders, obesity, and hepatology. • Principal Investigator in numerous clinical trials, including studies on metabolic, infectious, and li