Andrej Michalsen, MD, MPH, was born 1957 in Überlingen/See, Germany. He received his medical training at the medical schools of Kiel, Freiburg and Tübingen universities as well as at the University of Texas School of Public Health in Houston, TX, U.S.A., and he has worked at the academic hospitals of Mainz, Germany, and Utrecht, the Netherlands. He is currently working as a consultant in Anaesthesiology and Critical Care at Konstanz Hospital, Germany. Amongst others, he is a member of the Section on Ethics of the European Society of Intensive Care Medicine (which he chaired from 2013 until 2016), a member of the Ethics Section of the German Interdisciplinary Association of Intensive Care and Emergency Medicine, and a member of the Ethics and Conflict of Interest Committee of the American Thoracic Society. He has published and lectured extensively in the field of clinical ethics, his main areas of interest particularly comprising end-of-life care, appropriateness of care and prioritization in health care delivery.

Dr. Sadovnikoff obtained his medical degree from Brown University in 1984. He is trained and board-certified in Internal Medicine, Critical Care Medicine and Anesthesiology, and was for 16 years the Co-Director of the Surgical Intensive Care Units as well as program director of the Fellowship in Anesthesiology Critical Care at Brigham and Women's Hospital (BWH) in Boston, MA He was inducted as a fellow in the American College of Critical Care Medicine (FCCM) in 2008. He is currently Interim Chair of the Department of Anesthesiology, Critical Care and Pain Medicine at St. Elizabeth's Medical Center in Brighton, MA.

In 2008-9, he completed the Fellowship in Medical Ethics at Harvard Medical School. He served for seven years as Co-Chair of the BWH Ethics Committee, was Associate Director of the BWH Office of Clinical Ethics and has achieved certification in Healthcare Ethics Consultation (HEC-C). He is the Vice-Chair of the ASA Committee on Ethics and was the 2019 recipient of the Shubin-Weil Master Clinician/Teacher Award from the Society of Critical Care Medicine. He is Co-Editor with Dr. Andrej Michalsen of an international volume of articles entitled Compelling Ethical Challenges in Critical Care and Emergency Medicine (Springer, 2020).

Jozef Kesecioglu is Professor of Intensive Care Medicine at the Department of Intensive Care Medicine, University Medical Center, Utrecht, the Netherlands. He has been the chair of the Department of Intensive Care Medicine between 2005-2020. During this period, he has re-organised the pre-existing four intensive care units and made one department of it before designing and moving to the new, award winning, state-of-the-art ICU.

Professor Kesecioglu was Chairman of the Ethics Section of the European Society of Intensive Care Medicine (ESICM). After finishing his term, he worked in the Executive Committee of ESICM as the Chair of the Division of Scientific Affairs. In 2016, he is has become the President Elect of ESICM. He has been the President of ESICM between 2018-2020. He was awarded with ESICM Society Medal in 2022.

Professor Kesecioglu has authored around 175 published or in-press peer-reviewed papers and has been giving lectures in various scientific meetings. His main interests are ethics, intensive care environment, and selective decontamination of the digestive tract.