Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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Credit
Two naked men making love against a window with one wearing a condom; advertisement for safe sex by the Gay Men's Health Crisis and AIDS ACTION Committee of Massachusetts. Colour lithograph by Peter Urban, 1991. Wellcome Collection. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.