. 2017 Jan 1;21(1):60–66. doi: 10.5588/ijtld.16.0297
© 2017 Ragonnet et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.