Scientific and Planning Committee Biographies

Laura Zwaan, PhD (Chair) is an assistant professor at the Institute of Medical Education Research Rotterdam (iMERR) of the Erasmus MC in Rotterdam. Laura has a background in cognitive psychology and epidemiology, and obtained a PhD degree on Diagnostic reasoning and Diagnostic error in medicine from the VU University Medical Center in Amsterdam, the Netherlands.
She has authored or co-authored more than 20 publications in the field of patient safety. In addition to her work as a researcher she is the chair of the Diagnostic Error in Medicine 1st European conference and for many years a member of the organizing committee of the annual International Diagnostic Error in Medicine conference. Laura is the chair of the research committee of the Society to Improve Diagnosis in medicine (SIDM), and is on the editorial board of the journal ‘Diagnosis’.


Dr Yoryos (Georgios) Lyratzopoulos, MD, FFPH, FRCP, MPH (Co-Chair) is Cancer Research-UK Advanced Clinician Scientist Fellow (2015-19), and Associate Professor (Reader) in Cancer Epidemiology at University College London (UCL). He leads a research programme on diagnostic intervals and pathways in patients with cancer, and cancer patient experience. He was previously NIHR Post-Doctoral Fellow (2012-14, Cambridge) and has worked for the English NHS and NICE as a hospital doctor and public health physician. He has published 120 peer-reviewed papers, of which 80 as first or last author (May 2016).


Maarten ten Berg, PharmD, PhD, is a clinical chemist at the Department of Clinical Chemistry and Hematology of the University Medical Center Utrecht. In the clinical lab he is professionally responsible for pre-analysis and clinical trial services. Maarten’s ambition is to contribute to safe and effective patient care by providing a diagnostic service in which all patients get the right the test at the right time at the right place at the right price. He is trained as epidemiologist and has specific expertise in observational research with real-world clinical databases. His current research activities concern clinical and observational research on test utilization management and clinical test evaluation, including “big data” approaches.


Jason Maude serves as Chief Executive Officer and Co-founder of Isabel Healthcare Ltd. Prior to co-founding Isabel Healthcare Ltd, Maude spent 12 years working in the finance and investment banking industry in Europe. Throughout his career, Maude served as a top-ranked equity analyst at Kleinwort Benson Securities, Smith Barney and Dillon Read. While at Dillon Read, a prestigious U.S. investment bank, Maude served as partner and managing director of the company's UK office. This prominent position led Maude to AXA Investment Managers where he led equity research. In 1999, Maude's three-year-old daughter, Isabel fell seriously ill as a result of a misdiagnosis. Isabel's illness and experience inspired Maude to abandon his city career and create Isabel Healthcare. He is also on the editorial board of the journal ‘DIAGNOSIS’.

Speaker Biographies


Patrick M. Bossuyt is the professor of Clinical Epidemiology in the Academic Medical Center of the University of Amsterdam, the Netherlands. Dr. Bossuyt spearheaded the STARD initiative to improve reporting of diagnostic test accuracy studies and leads the Biomarker and Test Evaluation Research program in Amsterdam.  The BiTE Program aims to appraise and develop methods for evaluating medical tests and biomarkers, and to apply these methods in clinical studies. In doing so, the program wants to strengthen the evidence-base for rational decision-making about the use of tests and testing strategies in health care.


Dr. Karen Cosby is a senior emergency medicine physician at Cook County Hospital (Stroger) and associate professor at Rush Medical School in Chicago, IL. Her career interests include resident and medical student education, clinical decision-making, bedside ultrasound, and patient safety. She chairs the Fellowship subcommittee of the Society to Improve Diagnosis in Medicine and has chaired the Society for Academic Emergency Medicine (SAEM) interest group on patient safety, collaborating to produce a curriculum for patient safety.  She was a co-investigator of an AHRQ grant on diagnosis error and participated in an AHRQ funded study on transitions in health care.  She has authored 21 book chapters and edited three textbooks, including Patient Safety in Emergency Medicine. She has authored several articles on safety, including a framework for classifying factors that contribute to error in emergency medicine, and a 15-year review of patient care management problems identified in mortality and morbidity reviews. Her main career interest is in defining and understanding medical failures, and improving education to meet the needs of an increasingly complex healthcare system. 


Dr. Mark Dayer is a consultant cardiologist and the clinical lead at Musgrove Park Hospital, a medium-sized district general hospital in the South West of England. He sub-specialises in heart failure, inherited cardiac conditions and devices. He works ad hoc for the GMC as an expert witness, assessing the practice of other doctors and undertakes medicolegal work. After making a significant diagnostic error as a junior doctor he began to explore reasons why such errors are made and teaches and lectures on human factors and medical error, including surgical error. The reasons for this are in part to “normalise” medical error, to help junior doctors cope when they inevitably err, and in part to help them develop techniques to reduce the errors that they might otherwise make.


Paul Epner, MBA, is the Executive Vice President of the Society to Improve Diagnosis in Medicine (SIDM).  He is also the co-founder and a Director for SIDM as well as the Chair of the Coalition to Improve Diagnosis, a multi-organization collaboration. Paul serves as Immediate Past President of the Clinical Laboratory Management Association (CLMA) where he also leads the Increasing Clinical Effectiveness (ICE) initiative.  In addition to his focus on diagnostic error, Paul has been a thought leader on the role that clinical laboratorians should take to improve patient outcomes and healthcare delivery effectiveness.

Aneez Esmail is Professor of General Practice at the University of Manchester and Director of the National Institute of Health Patient Safety Translational Centre. He continues to practice as a clinician and his research interests include understanding the problems associated with patient safety in primary care.


Mark L. Graber, MD, FACP is a Senior Fellow at RTI International, Professor Emeritus of Medicine at the State University of New York at Stony Brook, and President of the Society to Improve Diagnosis in Medicine. Dr. Graber is a national leader in the field of patient safety and originated Patient Safety Awareness Week in 2002, an event now recognized internationally. He is also a pioneer in efforts to address diagnostic errors in medicine.  In 2008 he originated the Diagnostic Error in Medicine conference series, in 2011 he founded the Society to Improve Diagnosis in Medicine (, and in 2014 he launched a new journal, DIAGNOSIS, devoted to improving the quality and safety of diagnosis, and reducing diagnostic error. Dr. Graber received the 2014 John M Eisenberg Award from The Joint Commission and the National Quality Forum, recognizing individual achievement advancing patient safety.


Sara Hiom is Director of early diagnosis and cancer intelligence at Cancer Research UK – the largest charitable research funder of cancer research in Europe, investing around 500 million annually. In this capacity she has played a critical role in leading or supporting large scale initiatives and funding for early diagnosis work in the UK for over a decade. Before her present role, she trained and worked in biomedical research studying at University College London and the Medical Research Council’s National Institute for Medical Research.


Dr. Michael Laposata has been on the faculty at the University of Pennslvania, Harvard, and Vanderbilt before taking his current position of Chairman of the Department of Pathology at the University of Texas Medical Branch-Galveston, Galveston, Texas.  He is the editor or author of six books, and his comprehensive Laboratory Medicine textbook has been translated into Chinese and Italian. He is the recipient of 14 major teaching prizes at Harvard, the Massachusetts General Hospital, and the University of Pennsylvania School of Medicine. In a peer nominated survey performed by The Pathologist, an international journal reporting on the practice of pathology, the November 2015 issue identified Dr. Laposata as the most influential pathologist in the United States, and the third most influential pathologist in the world.


Una Macleod is Professor of Primary Care Medicine and Deputy Dean of the Hull York Medical School and is based at the University of Hull.  She joined HYMS in September 2010 from Glasgow, where she had been Senior Lecturer in General Practice and Primary Care at the University of Glasgow as well as a half time GP principal in the east end of the city.  Her research interests include primary care, cancer, and health inequalities.  She obtained the first Cancer Research Campaign Research Training Fellowship in Primary Care Oncology in 1995 during which she studied the balance of care for women with breast cancer from affluent and deprived areas.  Since then she has developed her interests in cancer, primary care, and health inequalities.  Her key interest is in improving the experience of primary care for patient with cancer or potential cancer symptoms.This includes access to primary care, recognition of potential cancer symptoms by patients and practitioners, care and support in primary care following cancer treatment, and for those with advanced disease.


Sílvia Mamede * is associate professor at the Institute of Medical Education Research Rotterdam, Erasmus MC and at the Department of Psychology, Erasmus University Rotterdam. She graduated as a physician and holds a PhD degree from the Erasmus University Rotterdam (2006), with a thesis on reflective practice in medicine conducted under the supervision of Prof.dr. Henk G. Schmidt. Her research areas of interest are: (1) the development of medical expertise and clinical reasoning, including clinical education; (2) judgment and decision-making in medicine, in particular the study of diagnostic errors; (3) reflective practice and experiential learning in continuous medical education. Sílvia has authored or coauthored more than 40 SSI/SSCI journal articles, and several chapters in books. In 2010 she was the winner of the “Outstanding publication” Division I Award of the American Educational Research Association.


Dr. Tobias Mueller has an educational background in computer science and medicine. Since 2014 he is working at the center for undiagnosed and rare diseases at the university clinic, Marburg, Germany. Established in December 2013, the center assists patients and physicians with diagnostic proposals in complex cases. The inquiries are generally patient initiated and the center is open to the general public. His research activities focus on the evaluation of computerized decision support tools in rare and undiagnosed diseases and epidemiological aspects of these patient group.


Andrew Olson, MD, FACP, FAAP is an Assistant Professor of Medicine and Pediatrics at the University of Minnesota Medical School, where he practices Hospital Medicine and Pediatrics.  He is the director of the Medical School's Subinternship in Critical Care that focuses on the development and assessment of competence to facilitate transition to residency.  His academic focus is the development of methods to teach about the diagnostic process as well as methods to improve diagnostic reasoning in clinical care.  He is the leader of the DX: Diagnostic Excellence Project, which is developing and evaluating a series of virtual patient cases for medical students about the diagnostic process and diagnostic error.


Prof. dr. Henk Schmidt is a professor of psychology at Erasmus University, the Netherlands and an honorary professor in medical education at Maastricht University. He is also a co-founder of the Institute of Medical Education Research Rotterdam, where he presently works part-time. His main research areas of interest are the development of expertise in medicine and problem-based learning. His 1990 article on cognitive psychology and medical expertise (written together with Geoffrey Norman from McMaster University, Canada) is the most cited in this field. Together with his PhDs, he has written more than a hundred articles on various aspects of medical expertise and its development. In a recent CWTS analysis, his research group at Erasmus University had a Crown-index score of 2.23, indicating that their work is 123% more often cited than the world average.


Hardeep Singh, M.D., M.P.H. is Chief of the Health Policy, Quality & Informatics program at the Veterans Affairs (VA) Health Services Research Center for Innovations based at the Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston. He leads a portfolio of federally-funded patient safety research in two related areas: improving the use of health IT, and reducing diagnostic errors in health care. In 2012, he received the AcademyHealth Alice S. Hersh New Investigator Award for high impact multidisciplinary research, and in 2014, he received the prestigious Presidential Early Career Award for Scientists and Engineers (PECASE) from President Obama for his pioneering work in the field.


Karen Stegers-Jager * is an assistant professor at the Institute of Medical Education Research Rotterdam (iMERR). She holds an MSc in Educational Technology and a PhD in Medical Education. Her three main areas of research are: (1) predictors of medical school performance, with a special focus on ethnic minority and first-generation university students, (2) unraveling ethnic disparities in undergraduate clinical performance, (3) selection and admission of medical students and residents.


Professor Charles Vincent trained as a Clinical Psychologist and worked in the British NHS for several years. Since 1985 he has carried out research on the causes of harm to patients, the consequences for patients and staff and methods of improving the safety of health care. He established the Clinical Risk Unit at University College London in 1995 where he was Professor of Psychology before moving to the Department of Surgery and Cancer at Imperial College in 2002. He is the editor of Clinical Risk Management (BMJ Publications, 2nd edition, 2001), author of Patient Safety (2ned edition 2010), author of “Safer Health Care: Strategies for the Real World” (open access), and author of many papers on medical error, risk and patient safety. From 1999 to 2003 he was a Commissioner on the UK Commission for Health Improvement and has advised on patient safety in many inquiries and committees including the recent Berwick Review. In 2007 he was appointed Director of the National Institute of Health Research (NIHR) Centre for Patient Safety & Service Quality at Imperial College Healthcare Trust, London. He is a Fellow of the UK Academy of Social Sciences and was recently reappointed as NIHR Senior Investigator. In 2014 he took up a new post as Health Foundation Professorial Fellow in the Department of Psychology, University of Oxford where he continues his work on safety in health care.


Dr. Jolande Y. Vis is a physician specializing in clinical chemistry and laboratory medicine. In addition, she has studied epidemiology and healthcare management. She has extensive experience in diagnostic evaluation studies, setting up multi-center trials and cost-effectiveness analyses that resulted in her PhD thesis on preterm labor and medical test evaluation. In addition, she has participated in several national committees to improve health care from a diagnostic perspective.


Cordula Wagner (PhD, physiotherapist, sociologist) is executive director of the Netherlands Institute of Health Services Research (NIVEL) in Utrecht and works as a professor of patient safety at VU University medical center in Amsterdam. She is also head of the patient safety research center ‘Safety 4 Patients’, a collaboration of EMGO+/VUmc and NIVEL.
For the last 20 years Cordula has been involved in a substantial number of projects focusing on a) the implementation of quality systems among healthcare institutions and professionals, b) the evaluation of national quality programs and more specific quality improvement activities such as guidelines, team-training and break-through projects, c) the relation between quality systems, care process and clinical outcomes, and d) risk management and patient safety. The research takes place in various healthcare fields, e.g. hospitals, nursing homes, primary care and mental healthcare organisations. She has also participated in a number of European projects focusing on quality and patient safety.


Dr. Katriina Whitaker CPsychol is a Chartered Psychologist, Senior Lecturer and Lead for Cancer in the School of Health Sciences at the University of Surrey. She was previously a Cancer Research UK Research Fellow (2012-2015, University College London/University of Surrey). Her areas of interest and expertise include early diagnosis of cancer, understanding cancer knowledge, attitudes and beliefs, symptom perception, healthcare-seeking and health inequalities.

* Abstract Committee

Society to Improve
Diagnosis in Medicine
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