Transmitted Disease Surveillance (PDF). Centers for Disease Control and Prevention (CDC). 2008 [2011-12-06]. (原始内容存档 (PDF)于2018-10-02). Also see Fact Sheet
中国人民大学出版社. 2013. ISBN 9787300163741. Sexually Transmitted Disease Surveillance (PDF). Centers for Disease Control and Prevention (CDC). 2008 [2011-12-06]. (原始内容存档