Acknowledgements
This study was supported by the Platform Project for Practical Research for Innovative Cancer Control from the Japan Agency for Medical Research and Development (AMED) (#15Ack0106073h0002) (KO: Tokyo, SO: Kyoto) and the Private University Strategic Research-Based Support Project (S1311016) from the Ministry of Education, Culture, Sports, Science, and Technology (Tokyo, Japan).
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2017.1382696.