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S2
Arnot Ogden Medical Center website information. Available at: http://www.aomc.org/chlamydia.html

S3
American Social Health Association website information. Available at: http://www.ashastd.org/learn/learn_chlamydia_facts.cfm

S4
Centers for Disease Control and Prevention. Sexually transitted diseases treatment guidelines 2002. MMWR 2002;51 (No. RR-6) [32-41].