Hsu, D T
Sanford, B J
Meyers, K K
Love, T M
Hazlett, K E
Walker, S J
Mickey, B J
Koeppe, R A
Langenecker, S A
Zubieta, J-K
Article History
Received: 15 September 2014
Revised: 10 October 2014
Accepted: 17 November 2014
First Online: 20 January 2015
Competing interests
: Dr RAK is a consultant for Avid Corp., Merck and Johnson & Johnson; Dr BJM received salary support from St. Jude Medical for research unrelated to this manuscript. The remaining authors declare no conflict of interest.