Breast Neoplasms, Male

• Complejo Hospitalario Universitario de Ferrol — Ferrol, A Coruña, Spain
• Hospital Virgen de los Lirios — Alcoy, Alicante, Spain
• Hospital General de Granollers — Granollers, Barcelona, Spain
• Instituto Catalán de Oncología de L'Hospitalet — L'Hospitalet de Llobregat, Barcelona, Spain

• University of Chicago — North Chicago, Illinois, United States

Not specified

• Centre Regional Rene Gauducheau — Dijon, France

• North Central Cancer Treatment Group — Rochester, Minnesota, United States

• Surgery Branch — Bethesda, Maryland, United States

• British Columbia Cancer Agency - Vancouver Cancer Centre — Vancouver, British Columbia, Canada
• Edmond Odette Cancer Centre at Sunnybrook — Toronto, Ontario, Canada

• Penrose Cancer Center — Colorado Springs, Colorado, United States
• Centura - Porter Adventist Hospital — Denver, Colorado, United States
• Centura - St. Anthony Hospital — Lakewood, Colorado, United States
• Centura - Parker Adventist Hospital — Parker, Colorado, United States

• Georgetown University Medical Center/Lombardi Comprehensive Cancer Center — Washington D.C., District of Columbia, United States

• Providence Alaska Medical Center — Anchorage, Alaska, United States
• Fairbanks Memorial Hospital — Fairbanks, Alaska, United States
• Pinnacle Oncology Associates — Scottsdale, Arizona, United States
• Mayo Clinic in Arizona — Scottsdale, Arizona, United States