[1] Natl Surg Adjuvant Breast & Bowel Project, Pittsburgh, PA USA
[2] Univ London, London, England
[3] Genom Hlth, Redwood City, CA USA
[4] Natl Surg Adjuvant Breast & Bowel Project & Alleg, Pittsburgh, PA USA
[5] Royal Marsden Hosp, London SW3 6JJ, England
[6] Newcastle Univ, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England