Janssen, S. J., Bredenoord, A. L., Dhert, W., de Kleuver, M., Oner, F. C., & Verlaan, J. (2015). Potential Conflicts of Interest of Editorial Board Members from Five Leading Spine Journals. PLoS One.

Janssen, Stein J., Annelien L. Bredenoord, Wouter Dhert, Marinus de Kleuver, F. Cumhur Oner, i Jorrit-Jan Verlaan. "Potential Conflicts of Interest of Editorial Board Members From Five Leading Spine Journals." PLoS One 2015.

Janssen, Stein J., et al. "Potential Conflicts of Interest of Editorial Board Members From Five Leading Spine Journals." PLoS One 2015.