Taylor, Amy E.
Burgess, Stephen
Ware, Jennifer J.
Gage, Suzanne H.
Richards, J. Brent
Davey Smith, George
Munafò, Marcus R.
Article History
Received: 19 October 2015
Accepted: 3 May 2016
First Online: 24 May 2016
Competing interests
: The authors declare no competing financial interests.