,
Murray, E T
Hardy, R
Hughes, A
Wills, A
Sattar, N
Deanfield, J
Kuh, D
Whincup, P
Article History
Received: 4 July 2014
Revised: 13 January 2015
Accepted: 18 January 2015
First Online: 13 February 2015
Competing interests
: The authors declare no conflict of interest.