1. Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo, Japan
2. Department of Cell Biology, Japanese Foundation for Cancer Research, Cancer Institute, Tokyo, Japan
3. Department of Otolaryngology, Teikyo University Chiba Medical Center, Ichihara, Japan
4. Team for Advanced Development and Evaluation of Human Disease Models, RIKEN BioResource Center, Tsukuba, Japan