1. Harvard TH Chan School of Public Health, Harvard University, 677 Huntington Avenue, Boston, MA, USA
2. Yale-Hastings Program in Ethics and Health Policy, Yale University, New Haven, CT, USA and The Hastings Center, Garrison, NY, USA
3. Department of Law, The City Law School, University of London, London, UK
4. Department of Women and Children's Health, King's College London, London, UK