RT Journal Article
SR Electronic
T1 Correction
JF BMJ Open
JO BMJ Open
FD British Medical Journal Publishing Group
SP e001972corr1
DO 10.1136/bmjopen-2012-001972corr1
VO 3
IS 4
YR 2013
UL http://bmjopen.bmj.com/content/3/4/e001972corr1.abstract
AB