Dougan, M M
Field, A E
Rich-Edwards, J W
Hankinson, S E
Glynn, R J
Willett, W C
Michels, K B
Article History
Received: 26 April 2015
Revised: 12 July 2015
Accepted: 23 August 2015
First Online: 21 September 2015
Competing interests
: The authors declare no conflict of interest.