Hofstra, E., Elfeddali, I., Metz, M., Bakker, M., de Jong, J. J., van Nieuwenhuizen, C., & van der Feltz-Cornelis, C. M. (2019). A regional systems intervention for suicide prevention in the Netherlands (SUPREMOCOL):  study protocol with a stepped wedge trial design. BMC Psychiatry.

Hofstra, Emma, Iman Elfeddali, Margot Metz, Marjan Bakker, Jacobus J. de Jong, Chijs van Nieuwenhuizen, e Christina M. van der Feltz-Cornelis. "A Regional Systems Intervention for Suicide Prevention in the Netherlands (SUPREMOCOL):  study Protocol With a Stepped Wedge Trial Design." BMC Psychiatry 2019.

Hofstra, Emma, et al. "A Regional Systems Intervention for Suicide Prevention in the Netherlands (SUPREMOCOL):  study Protocol With a Stepped Wedge Trial Design." BMC Psychiatry 2019.