1. Center for Comparative Medicine Department of Anatomy Physiology, and Cell Biology University of California Davis Davis CA USA
2. Department of Mucosal Immunology School of Medicine Chiba University Chuou‐ku Chiba Japan
3. Laboratory of Host Defense WPI Immunology Frontier Research Center Osaka University, Suita, Osaka Japan
4. Department of Molecular and Cellular Oncology The University of Texas MD Anderson Cancer Center Houston TX USA
5. Medical Research Council National Institute for Medical Research London UK