1. Centre for Clinical Research Sormland; Uppsala University; Uppsala Sweden
2. Comprehensive Breast Program; University of Florida Health Cancer Center-Orlando Health; Orlando Florida
3. Department of Breast Surgical Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
4. Department of Breast Surgery; St. Luke's International Hospital; Tokyo Japan
5. Department of Breast Surgery; Osaka International Cancer Institute; Osaka Japan
6. Department of Endocrine Surgery; Osaka International Cancer Institute; Osaka Japan
7. Department of Oral, Medical and Biotechnological Sciences; University G. D'Annunzio; Chieti-Pescara Italy
8. Department of Surgery, Breast Health Center; Medical University Vienna; Vienna Austria
9. Breast Surgical Oncology, Breast Cancer Center; University Hospital VAll d'Hebron; Barcelona Spain
10. Breast Disease Division, Department of Gynecology and Obstetrics, Ribeirao Preto Medical School; University of Sao Paulo; Sao Paulo Brazil
11. Department of Surgery; Chung-Ang University Hospital; Seoul South Korea
12. National Surgical Adjuvant Breast and Bowel Project Biostatistical Center, Department of Biostatistics, University of Pittsburgh Graduate School of Public Health; University of Pittsburgh; Pittsburgh Pennsylvania
13. Department of Breast Oncology; NHO Shikoku Cancer Center; Matsuyama Japan
14. Centre for Clinical Research; Vastmanlands County Hospital; Vasteras Sweden