RT Journal Article SR Electronic T1 Multiple sclerosis may be sexually acquired JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 444 OP 444 DO 10.1136/sti.78.6.444 VO 78 IS 6 YR 2002 UL http://sti.bmj.com/content/78/6/444.abstract AB