TY - JOUR T1 - Sexually transmitted diseases JF - Genitourinary Medicine JO - Genitourin Med SP - 280 LP - 280 DO - 10.1136/sti.63.4.280 VL - 63 IS - 4 AU - GD Morrison Y1 - 1987/08/01 UR - http://sti.bmj.com/content/63/4/280.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -