1. Department of Geriatric Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
2. Department of Artificial Intelligence, Bernoulli Institute of Mathematics, Computer Science and Artificial Intelligence, University of Groningen, Groningen, The Netherlands.
3. IJsfontein, Amsterdam, The Netherlands.
4. Center for Education Development and Research in Health Professions, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.