Council for International Organizations of Medical Sciences, member of the working group for updating the CIOMS International Ethical Guidelines for Biomedical Research Involving Human Subjects (2012 – …)

World Health Organization, temporary advisor on the ethics of placebo-controlled vaccine trials (2013)

World Medical Association, consultant in the updating process of the 2008 Declaration of Helsinki (2012)

European Society of Medical Oncology, member of the Ethics Committee (2011-12)

Swiss Ministry of Health, consultant during the drafting process of the Swiss research regulations (2011)

World Health Organization, temporary advisor during the updating process of the WHO Guiding Principles on Human Cell, Tissue and Organ Transplantation (2005-7)

Clinical ethics

University Hospital Zurich, clinical ethicist (2011-12)

National Institutes of Health, clinical ethicist in the Clinical Center Ethics Consultation Service and member of the Clinical Center Ethics Committee (2007-10)

Research ethics review

National Institutes of Health, participant observer in the Institutional Review Board (IRB) for the National Institute for Allergy and Immune Disease and the National Institute for Child Health and Development (2007-9)