Anal sex

https://www.wikidata.org/wiki/Q8398

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Medicine 48.2M papers	Biology 34.8M papers	Immunology 5M papers	Virology 2.3M papers
Family medicine 2.1M papers	Human immunodeficiency virus (HIV) 511k papers	Syphilis 122k papers	Men who have sex with men 34.3k papers
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Anal sex 2,521 papers
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