RT Journal Article SR Electronic T1 Genital warts and the need for screening. JF Genitourinary Medicine JO Genitourin Med FD BMJ Publishing Group Ltd SP 399 DO 10.1136/sti.65.6.399 VO 65 IS 6 A1 M Griffiths YR 1989 UL http://sti.bmj.com/content/65/6/399.1.abstract AB