Funding for this research was provided by:
Cancer Research UK (C8641/A20490)
Received: 14 December 2017
Accepted: 25 May 2018
First Online: 15 June 2018
Ethics approval and consent to participate
: Favourable ethical opinion was given by the West of Scotland Research Ethics Service (reference: 15/WS/0203) to conduct the study in both England and Scotland. All women provided verbal informed consent to participate.
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