Metastatic Triple-negative Breast Cancer

• Sun Yat-sen Memorial Hospital, Sun Yat-sen University — Guangzhou, Guangdong, China
• Hunan Cancer Hospital — Changsha, Hunan, China

• BAPTIST ALLIANCE - MCI (Data Collection Only) — Miami, Florida, United States
• Emory University (Data Collection Only) — Atlanta, Georgia, United States
• Memorial Sloan Kettering Basking Ridge (All Protocol Activities) — Basking Ridge, New Jersey, United States
• Hackensack Meridian Health — Hackensack, New Jersey, United States

• The University of Texas M. D. Anderson Cancer Center — Houston, Texas, United States

• Yale University — New Haven, Connecticut, United States

• Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; — Guangzhou, Guangdong, China

Not specified

• The Queen Elizabeth Hospital — Bridgetown, Saint Michael, Barbados
• The University of the West Indies, Mona — Mona, Kingston, Jamaica
• St. James Medical Complex — Port of Spain, Saint James, Trinidad and Tobago

• Levine Cancer Institute — Charlotte, North Carolina, United States

• Aichi Cancer Center Hospital — Aichi, Japan
• Akita University Hospital — Akita, Japan
• Tohoku University Hospital — Aoba-ku, Japan
• Hirosaki University Hospital — Aomori, Japan

• Hunan Cancer Hospital — Changsha, China
• Xiangyang Central Hospital — Xiangyang, China