Sexually Transmitted Diseases Sourcebook : Basic Consumer Health Information about Sexual Health and the Screening, Diagnosis, Treatment, and Prevention of Common Sexually Transmitted Diseases , Including Chancroid, Chlamydia, Gonorrhea, Herpes, Hepatitis, Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome , Human Papillomavirus , Syphilis, and Trichomoniasis