Lam, Tsz-sum, et al. “Bacille-Calmette-Guérin Vaccine-Associated Suppurative Lymphadenitis in Hong Kong (China), 2004 to 2012”. Western Pacific Surveillance and Response, vol. 4, no. 1, Jan. 2013, https://doi.org/10.5365/wpsar.2013.4.1.001.