Add to ORKGThis is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial Licens
Declarations can be found on page 16 DOI 10.7717/peerj.2253 Copyright 2016 Garay et al
© 2015 Ivyspring International Publisher. Reproduction is permitted for personal, noncommercial use,...
This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...
ordinal logistic regression. This is an Open Access article distributed under the terms of the Creat...
This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
© 2015 Wei et al., This is an open access article published under the terms of the Creative Commons ...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
© 2015 Wang et al., This is an open access article published under the terms of the Creative Commons...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licen...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
This is an open access article distributed under the terms of the Creative Commons Attribution Licen...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
Declarations can be found on page 16 DOI 10.7717/peerj.2253 Copyright 2016 Garay et al
© 2015 Ivyspring International Publisher. Reproduction is permitted for personal, noncommercial use,...
This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...
ordinal logistic regression. This is an Open Access article distributed under the terms of the Creat...
This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
© 2015 Wei et al., This is an open access article published under the terms of the Creative Commons ...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
© 2015 Wang et al., This is an open access article published under the terms of the Creative Commons...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licen...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
This is an open access article distributed under the terms of the Creative Commons Attribution Licen...
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non C...
Declarations can be found on page 16 DOI 10.7717/peerj.2253 Copyright 2016 Garay et al
© 2015 Ivyspring International Publisher. Reproduction is permitted for personal, noncommercial use,...
This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...