TY - GEN AU - Martin,D H AU - DiCarlo,R P TI - Recent changes in the epidemiology of genital ulcer disease in the United States. The crack cocaine connection SN - 0148-5717 PY - 1994///0823 KW - Chancroid KW - epidemiology KW - Crack Cocaine KW - Female KW - HIV Infections KW - Humans KW - Incidence KW - Male KW - Minority Groups KW - Population Surveillance KW - Primary Prevention KW - methods KW - Risk Factors KW - Sexual Behavior KW - Substance-Related Disorders KW - complications KW - Syphilis KW - United States N1 - Publication Type: Journal Article; Review ER -