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Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/2zJpD613 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%
Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/2zJpD613 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%
Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/crQvSjYO Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%
Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/KyDlAm76 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%
Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/T3LUoET1 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%