Funding for this research was provided by:
Canadian Institutes of Health Research (128369, 49520)
Received: 1 November 2017
Accepted: 21 February 2018
First Online: 2 March 2018
Ethics approval and consent to participate
: Ethics approval was granted from the Research Ethics Boards of Mount Sinai Hospital (#13-0211-E), the University of Toronto (#29435), and the Ottawa Health Science Network (#2011623-01H). All women provided written informed consent for the collection of biological specimens and medical information.
: Not applicable.
: The authors declare that they have no competing interests.
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