1. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou China
2. Breast Tumor Center; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou Guangdong 510120 China
3. Department of Biostatistics; Yale School of Public Health; Yale University; New Haven Connecticut 06511