1. Yong Loo Lin School of MedicineNational University of Singapore Singapore 169856 Singapore
2. Department of Anatomical PathologySingapore General Hospital Singapore 169856 Singapore
3. Duke‐NUS Medical School Singapore 169856 Singapore
4. Institute of Molecular Cell Biology (IMCB), Agency of Science, Technology and Research (A*STAR) Singapore 169856 Singapore
5. Singapore Immunology NetworkAgency of Science (SIgN)Technology and Research (A*STAR) Singapore 169856 Singapore