Sugishita, Y., Kayebeta, A., Soejima, K. and Yauchi, M. 2019. Rapid increase of syphilis in Tokyo: an analysis of infectious disease surveillance data from 2007 to 2016. Western Pacific Surveillance and Response. 10, 1 (Mar. 2019). DOI:https://doi.org/10.5365/wpsar.2017.8.2.006.