Djuric, N. http://orcid.org/0000-0002-5556-6955
Yang, X.
el Barzouhi, A.
Ostelo, R.
van Duinen, S. G.
Lycklama à Nijeholt, G. J.
van der Kallen, B. F. W.
Peul, W. C.
Vleggeert-Lankamp, C. L. A.
Funding for this research was provided by:
Leiden University Medical Center
Article History
Received: 16 May 2019
Accepted: 23 October 2019
First Online: 4 December 2019
Compliance with ethical standards
: The protocol, which included analysis of the disc material, was approved by the medical ethics committees at all participating hospitals.
: None of the authors have a conflict of interest.