Iosefson, Ohad
Nager, Andrew R
Baker, Tania A
Sauer, Robert T
Article History
Received: 5 April 2014
Accepted: 10 November 2014
First Online: 19 January 2015
Change Date: 30 January 2015
Change Type: Erratum
Change Details: There was a mismatch between the PDF and the HTML versions upon online release. In addition, the title of the article and the third sentence of the article have been modified by changing 'an' to 'a' before AAA+. The first sentence of the first paragraph was edited incorrectly and has been modified to reflect the correct meaning. Finally, in the last sentence on page 5, the word 'given' has been modified to 'based on'. These errors have been corrected in the HTML and PDF versions of the article.
Competing interests
: The authors declare no competing financial interests.