1. Cancer & Stem Cell Biology Program Duke–NUS Medical School 8 College Road Singapore 169857 Singapore
2. Laboratory of Molecular Carcinogenesis Division of Cellular & Molecular Research Humphrey Oei Institute of Cancer Research National Cancer Centre Singapore 11 Hospital Drive Singapore 169610 Singapore
3. Department of Biochemistry National University of Singapore 8 Medical Drive Singapore 117597 Singapore
4. Institute of Molecular and Cellular Biology 61 Biopolis Drive Singapore 138673 Singapore