1. Syphilis and congenital syphilis — United States 1985 — 1988;Centers for Disease Control;MMWR,1988
2. Increases in primary and secondary syphilis — United States;Centers for Disease Control;MMWR,1987
3. Continuing increase in infectious syphilis — United States;Centers for Disease Control;MMWR,1988
4. Epidemiology of primary and secondary syphilis in the United States, 1981 through 1989;Rolfs;JAMA,1990
5. Relationship of syphilis to drug use and prostitution — Connecticut and Philadelphia, Pennsylvania;Centers for Disease Control;MMWR,1988