Elisabeth Waldmann, MD, PhD, graduated at the Medical University of Vienna in 2012. After beginning her residency in general medicine at the St. John of God hospital, she returned to the Medical University of Vienna, where she completed her residency and fellowship for internal medicine, as well as her PhD in Public Health. 2019-2020 she was trained as postdoctoral research fellow at the Harvard T.H. Chan School of Public Health and Frontier Science in Boston. Back in Vienna, she received her venia docendi in 2021. Currently, Dr. Waldmann receives her training for specialization in Gastroenterology and Hepatology in Vienna. Her clinical and research interests are the molecular pathogenesis of colorectal cancer, cancer prevention and screening programs, particularly quality assurance in screening colonoscopy. She delivered numerous oral presentations at national and international conferences and published her work in peer-reviewed scientific papers. She actively participates in national and international working groups focusing on quality assurance in cancer screening, and is co-author of guidelines addressing colonoscopy screening. Her current research focuses mainly on the immune profile of high-risk colorectal polyps in young patients.

Doctor Sami Wali established in 1998 the first pediatric living-related liver transplant program in Saudi Arabia, Riyadh, Prince Sultan military Medical City. Since then, he is considered an authority in pediatric Hepatology and Liver transplant in Saudi Arabia. He discovered and reported five new genes, mutations in which led to previously unknown familial liver diseases. He also contributed to discovery of two more genes, mutations in which also led to previously unreported familial liver diseases. During this period, he was interested in discovering disease mechanism based on modulations of membrane microdomain organization. He wrote and published many books related to disease mechanism, particularly familial liver disorders, based on modulations and disorganization of membrane microdomains.

David works as a research fellow in the Centre for Inflammation Research at the University of Edinburgh and as a newly appointed consultant at the Royal Hospital for Children, Glasgow.

Dr Suz Warner is a Consultant Paediatric Hepatologist at Leeds Children's Hospital. Her Specialist interests are Autoimmune liver disease, Viral hepatitis, Liver and Solid Organ Transplant Immunology. Her PhD is in Liver Immunology which was undertaken at the Centre of Liver and Gastrointestinal Research (CLGR) based at the Department of Immunology and Immunotherapy, University of Birmingham. She investigated the role of Mucosal-associated Invariant T (MAIT) cells in the pathogenesis of paediatric autoimmune liver disease. MAIT cells are a type of T lymphocyte found predominately in the peri-biliary and portal areas in disease, most notably in PSC. Transcriptomic studies show a tissue repair signature and in health, MAIT cells are speculated to have a homeostatic role in tissue repair and regeneration. In autoimmune liver disease however, chronic MAIT cell activation augments hepatic stellate cell proliferation. They are thus profibrogenic and contributes to the underlying pathophysiology and biliary epithelial damage observed in PSC. Suz complimented her PhD by working as a Clinical Research Fellow at the Liver Unit, Birmingham Children's hospital, a role which she thoroughly enjoyed. As a Clinical Research Fellow, she looked after children on different clinical trial phases and coordinated the logistics of clinical trial research within the unit. Aside from her subspecialty interests, she is a keen advocate for quality improvement and plans to build on her experience in risk management, and continue her work in clinical trial research.

Daniel Weghuber, MD, is an alumnus of Vienna Medical School. He is Professor of Pediatrics at Paracelsus Medical School (PMU) in Salzburg, Austria. Clinically, he is head of the Department of Pediatrics, being specialized in Pediatric Gastroenterology, Hepatology and Nutrition and Pediatric Endocrinology. He is particularily interested in the treatment of obesity and associated comorbidities including diabetes mellitus, fatty liver and other liver diseases, and phenotypes of preclinical atherosclerosis. Other areas of interest include orthopedic and psychological comorbidities, interdisciplinary diagnostics, mitochondrial genetics, lifestyle and pharmacological treatment as well interdisciplinary as bariatric surgery of children and adolescents with obesity. In addition, he is involved in several training and educational activities of health care professionals on a national and international level in regard to obesity management. He is currently Past President of the European Childhood Obesity Group.

My research interests include many aspects of milk lipids, such as the milk lipid composition, special fatty acids, triacylglycerols, milk fat globule membrane, and human milk fat substitutes. In our lab, we carry out experiments to analysis of natural fats and oils (mainly using MS), lipase-catalyzed synthesis, lipid structure, and in-vitro lipid digestion. The aim is a better understanding of the fundamental science of milk lipids and produces functional lipids for nutrition in early life.

Xinyi Wei is a Doctor of Medicine candidate with a research focus on the molecular pathophysiology of Eosinophilic Esophagitis at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) in Germany, under the supervision of Prof. Dr. med. André Hörning. She obtained her Bachelor of Science in Medicine from Xinxiang Medical University and completed her Master of Science in Medicine degree from Zhengzhou University (ZZU) in China.

Margreet Wessels was trained as a pediatric gastroenterologist at Leiden University Medical Center and Erasmus Medical Center in Rotterdam, in the Netherlands. She finished her PhD on follow-up and management in pediatric coeliac disease in 2019. Since then she has been active in several clininal research projects in the field of pediatric gastroenterology and involved in (inter)national coeliac guidelines. She is a member of the Special Interest Group on coeliac disease of ESPGHAN.

I am a MD, PhD fellow from the Department of Gastroenterology at Hvidovre University Hospital, Denmark. I have a special interest in IBD. We have mainly done epidemiological studies on IBD disease course.