Updates are available Erratum dated 2015-05-28

Article History

First Online: 2 April 2015

Change Date: 27 May 2015

Change Type: Corrigendum

Change Details:  In the version of this article initially published, the text detailing the HPLC elution protocol in the Equipment Setup section (a 2-min column pre-equilibration in 9:1 A:B (vol/vol); sample injection; 2-min wash with 100% A; 14-min linear gradient to 100% B; and 15-min post-run column equilibration) was incorrect and has been changed to read: a 2-min column pre-equilibration in 9:1 A:B (vol/vol); sample injection; 2-min wash with 100% A; 12-min linear gradient to 100% B; and 1-min post-run column equilibration. The error has been corrected in the HTML and PDF versions of the article.

Competing interests

: The authors declare no competing financial interests.