The author initials were not complete in the original publication [1]. The correct initials should be: "CI Busard, SP Menting, JS van Bezooijen, JM van den Reek, BA Hutten, EP Prens, EM de Jong, MB van Doorn, PI Spuls".

doi.org/10.1186/s13063-017-1848-0, hdl.handle.net/1765/98547
Trials
Department of Dermatology

Busard, C., Menting, S. P., van Bezooijen, J., Van Den Reek, J. M. P. A., Hutten, B., Prens, E., … Spuls, P. (2017). Erratum to: Optimizing adalimumab treatment in psoriasis with concomitant methotrexate (OPTIMAP): Study protocol for a pragmatic, single-blinded, investigator-initiated randomized controlled trial. [Trials. 52, (2017), (18)] DOI: 10.1186/s13063-017-1777-y. Trials, 18(1). doi:10.1186/s13063-017-1848-0