Sjoukje van den Broek a,d and Tineke Westerveld a,c,d, † a education centre, unit of medical education, university medical centre utrecht, utrecht, the netherlands; b utrecht centre for research and development of Health Professions education, university medical centre utrecht, utrecht, the netherlands; c dept of internal medicine and dermatology, university medical centre utrecht, utrecht, the netherlands; d Faculty of social and Behavioural sciences, utrecht university, utrecht, the netherlands

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