Improving sexually transmitted disease health services for gays: a national prospective.
D003695:Delivery of Health Care; D005380:Financing, Government; D006716:Homosexuality; D006801:Humans; D008297:Male; D012749:Sexually Transmitted Diseases / Q000517:prevention & control / Q000635:transmission; D013587:Syphilis / Q000453:epidemiology; D014481:United States