1. Department of Urology, University of Occupational and Environmental Health, Kitakyushu, Japan.
2. Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan.
3. Rare Disease & LCM Laboratories, Group I, R&D Division, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
4. WHO Collaborating Centre for Gonorrhoea and other STIs, Department of Laboratory Medicine, Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.