[1] ASTAR, Singapore Immunol Network SIgN, BIOPOLIS, Singapore 138648, Singapore
[2] Tisch Canc Inst, Dept Oncol Sci, New York, NY 10029 USA
[3] Icahn Sch Med Mt Sinai, Inst Immunol, New York, NY 10029 USA
[4] Univ Calif Santa Cruz, Inst Biol Stem Cells, Dept Biomol Engn, Santa Cruz, CA 95064 USA
[5] Natl Univ Singapore, Yong Loo Lin Sch Med, Expt Fetal Med Grp, Singapore 119228, Singapore
[6] KK Womens & Childrens Hosp, Reprod Med, Singapore 229899, Singapore
[7] Duke NUS Grad Med Sch, Singapore & Canc & Stem Cell Biol Program, Singapore 169857, Singapore
[8] Univ Zurich, Inst Expt Immunol, CH-8057 Zurich, Switzerland
[9] Chinese Acad Sci, Guangzhou Inst Biomed & Hlth, Guangzhou 510530, Guangdong, Peoples R China