Author information:
(1)Department of Pathology, University of Cambridge, Cambridge, UK.
(2)Centre for Trophoblast Research, Departments of Physiology and Neuroscience, 
University of Cambridge, Cambridge, UK.
(3)Singapore Immunology Network, Agency for Science, Technology and Research, 
Singapore, Singapore.
(4)School of Biological Sciences, Nanyang Technological University, Singapore, 
Singapore.
(5)Key Laboratory for Regenerative Medicine of Ministry of Education, Institute 
of Hematology, School of Medicine, Jinan University, Guangzhou, China.
(6)State Key Laboratory of Proteomics, Academy of Military Medical Sciences, 
Academy of Military Sciences, Beijing, China.
(7)State Key Laboratory of Experimental Hematology, Institute of Hematology and 
Blood Diseases Hospital, Chinese Academy of Medical Sciences, Tianjin, China.
(8)Shanghai Institute of Immunology, Shanghai JiaoTong University School of 
Medicine, Shanghai, China.
(9)Translational Immunology Institute, SingHealth Duke-NUS Academic Medical 
Centre, Singapore, Singapore.
(10)Department of Genetics, University of Cambridge, Cambridge, UK.