1. The Royal Wolverhampton NHS Trust, Wolverhampton, U.K.
2. St. James’s University Hospital, Leeds, U.K.
3. Wirral Breast Centre, Clatterbridge Hospital, Wirral, U.K.
4. Lincoln Breast Unit, Lincoln County Hospital, Lincoln, U.K.
5. Royal Hampshire County Hospital, Hampshire, U.K.
6. Guy’s and St Thomas’ NHS Foundation Trust, London, U.K.
7. Nightingale Breast Centre, Manchester University NHS Foundation Trust, Manchester.