1 Rivierduinen Eating Disorders Ursula, POB 405, 2300 AK Leiden, the Netherlands; Department of Psychiatry, Leiden University Medical Centre, Leiden, the Netherlands. Electronic address: e.vanfurth@rivierduinen.nl.
2 Rivierduinen Eating Disorders Ursula, POB 405, 2300 AK Leiden, the Netherlands.
3 James Lind Alliance, National Institute for Health Research Evaluation, Trials and Studies Coordinating Centre, Southampton, UK.