Dockx, Greet
Geisel, Steffen
Moore, David G.
Koos, Erin http://orcid.org/0000-0002-2468-2312
Studart, Andre R. http://orcid.org/0000-0003-4205-8545
Vermant, Jan
Article History
Received: 6 June 2018
Accepted: 24 October 2018
First Online: 12 November 2018
Competing interests
: The authors declare no competing interests.