License Term

LICENSE

Copyright @2017. This is an open-access article distributed under the terms of the Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/)

  • Adapt — remix, transform, and build upon the material for any purpose, even commercially

 Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.