Grants Committee, Member, Cancer Research Campaign, 1987-1993.
Breast Cancer Trials Group: Biomarkers Working Party, Member, Cancer Research Campaign, 1996-2001.
Breast Cancer Group, Member, United Kingdom Co-ordinating Committee for Cancer Research, 1997-2001.
Biomarkers Group, Member, UKCCR, 1997-2001.
Veterinary Products Committee Working Group on Hormones, Member, Veterinary Medicines Directorate, 1999-2005.
Receptor and Biomarker Group, Member, EORTC, 2001-2003.
HRT in Breast Cancer Working Party, Member, Committee of Safety of Medicine, 2002-2002.
Medical Advisory Committee, Member, Royal Marsden NHS Trust, 1994-2004.
Steering Committee for Prevention Studies for High Genetic Risk of Breast Cancer, Chairman, , 1998-2004.
British Breast Group, Chairman, , 2001-2003.
Clinical Studies Group Translational Committee, Chairman, NTRAC, 2002-2004.
Scientific Committee, UK Adviser on Breast Cancer, ECCO, 2005-2005.
Lymphoma Group Working Party on Secondary Breast Cancer, Member, NCRI, 2002-2005.
Site Visit Committee, Member, Manchester University & Christie Hospital Breast Cancer Programme, 2005-2005.
Scientific Committee, Member, Cancer Research Ireland, 2004-2007.
Translational (now Biomarker and Imaging) Clinical Study Group, Inaugural Chairman, NCRI, 2004-2011.
Executive Board, Member, Breast International Group, 2007.
Aromatase Inhibitor Overview Group, Chairman, , 2004.
Special Awards Selection Committee, Member, ASCO, 2008.
New Studies Working Party, Member, Cancer Research Campaign, 1996-2001.
Scientific Committee, Member, IMPAKT, 2011.
Executive Committee, Member, IMPAKT, 2011-2012.
Translational Research in Clinical Trials Committee/BIDD, Member, Cancer Research UK, 2004-2011.
Scientific Advisory Committee, Board Member, Danish Cancer Institute, 2005.
Scientific Advisory Board, Board Member, CREATE Health, Lund University, 2007.
Biomarker Study Group, Member, International Breast Cancer Study Group, 1997.
Scientific Advisory Board, Board Member, Wales Cancer Bank, 2007-2012.
UK Breast Intergroup, Member, NCRI Breast Clinical Studies, 2007.
Breast Clinical Study Group, Member, NCRI, 2002.
ER/PR Testing Guidelines Committee, Steering Committee Member, ASCO/CAP, 2008.
HER2 Testing Guidelines Committee, Member, ASCO/CAP, 2007.
Scientific (QQR) Subcomittee, Member of Review Subcommittee, Medical Research Council, British Heart Foundation and Cancer Research UK, 2013-2013.