These authors contributed equally: Anna K. Casasent, Mathilde M. Almekinders, Charlotta Mulder.

Department of Genetics, MD Anderson Cancer Center, Houston, TX, USA

Anna K. Casasent, Nicholas E. Navin, Andrew Futreal & Nicholas E. Navin

Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands

Mathilde M. Almekinders, Charlotta Mulder, Proteeti Bhattacharjee, Jos Jonkers, Esther H. Lips, Jacco van Rheenen, Jelle Wesseling, Jacco van Rheenen & Marjanka Schmidt

Patient Advocates in Research, Danville, CA, USA

Deborah Collyar

Division of Surgical Oncology, Baylor College of Medicine, Houston, TX, USA

Alastair M. Thompson

Duke University Hospital, Duke University, Durham, NC, USA

E. Shelley Hwang & E. Shelley Hwang

Department of Medical Genetics, University of Cambridge, Cambridge, UK

Serena Nik-Zainal & Helen R. Davies

Department of Bioinformatics, MD Anderson Cancer Center, Houston, TX, USA

Nicholas E. Navin, Andrew Futreal & Nicholas E. Navin

Department of Pathology, Leiden University Medical Center, Leiden, Netherlands

Jelle Wesseling

Guy’s Cancer Centre, King’s College London, London, UK

Elinor J. Sawyer

Department of Pathology and Laboratory Medicine, Kansas University Medical Center, Kansas, USA

Fariba Behbod

Computational Cancer Biology, Netherlands Cancer Institute, Amsterdam, Netherlands

Lodewyk F. A. Wessels

Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK

Daniel Rea

Independent Cancer Patients’ Voice, London, UK

Hilary Stobart

DCIS 411, San Diego, CA, USA

Donna Pinto

Dutch Breast Cancer Society (Borstkankervereniging Nederland), Utrecht, Netherlands

Ellen Verschuur & Marja van Oirsouw