van Dalen, M., Pasmans, S. G. M. A., Aendekerk, M., Mathijssen, I., Koudstaal, M., Timman, R., …Okkerse, J. (2021). Investigating online psychological treatment for adolescents with a visible difference in the Dutch YP Face IT study: Protocol of a randomised controlled trial. BMJ Open, 11(1), Article e041449. https://doi.org/10.1136/bmjopen-2020-041449