[1] Royal Wolverhampton Hosp NHS Trust, New Cross Hosp, Wolverhampton WV10 0QP, W Midlands, England
[2] Univ Liverpool, North West Hub Trials Methodol, CTRC, Liverpool L12 2AP, Merseyside, England
[3] Univ Hosp South Manchester NHS Fdn Trust, Breast Unit, Southmoor Rd, Manchester M23 9LT, Lancs, England
[4] Univ Hosp Southampton, Breast Unit, Tremona Rd, Southampton SO16 6YD, Hants, England
[5] Univ Southampton, Fac Med, Univ Rd, Southampton SO17 1BJ, Hants, England
[6] Univ Oxford, Nuffield Orthopaed Ctr, Nuffield Dept Orthopaed Rheumatol & Musculoskelet, Windmill Rd, Oxford OX3 7HE, England
[7] Imperial Coll London NHS Trust, Dept Plast Surg, London SW7 2AZ, England
[8] Univ Hosp Coventry & Warwickshire NHS Trust, Dept Plast Surg, Clifford Bridge Rd, Coventry CV2 2DX, W Midlands, England
[9] Worcester Royal Hosp, Breast Unit, Worcester WR5 1DD, England
[10] Nottingham Univ Hosp NHS Trust, Breast Inst, Hucknall Rd, Nottingham NG5 1PB, England
[11] Univ Bristol Sch Med, Populat Hlth Sci, Bristol Ctr Surg Res, Canynge Hall 39,Whatley Rd, Bristol BS8 2PS, Avon, England
[12] Southmead Hosp, North Bristol NHS Trust, Bristol Breast Canc Ctr, Bristol BS10 5NB, Avon, England
[13] Royal Liverpool & Broadgreen Univ Hosp, Linda McCartney Ctr, Prescot St, Liverpool L7 8XP, Merseyside, England