Ethical approval for this study was granted by the ethics board in each of the three respective participating universities (AUTEC 11/114, May 25th 2011), (Ref No.: 111160/ UCSD June 23rd 2011), (SSD/CUREC1A/10-054 Oxford, July 16th 2010)
*** Note that an error was made in entering the date for the UCSD ethical approval - it should in fact be "June 23rd 2011" (and not "August 4th 2011"). ***
Correcting wrongly entered ethical approval date
13 February 2014
Ethical approval for this study was granted by the ethics board in each of the three respective participating universities (AUTEC 11/114, May 25th 2011), (Ref No.: 111160/ UCSD June 23rd 2011), (SSD/CUREC1A/10-054 Oxford, July 16th 2010)
*** Note that an error was made in entering the date for the UCSD ethical approval - it should in fact be "June 23rd 2011" (and not "August 4th 2011"). ***
Competing interests
No competing interests to declare