Spitschan, Manuel
Aguirre, Geoffrey K.
Brainard, David H.
Sweeney, Alison M.
Article History
Received: 21 January 2016
Accepted: 3 May 2016
First Online: 7 June 2016
Change Date: 22 December 2017
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.