RT Journal Article SR Electronic T1 Follow up of treatment: an integral part of the control of Chlamydia trachomatis infections. JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 76 OP 76 VO 75 IS 1 A1 Pasternack, R A1 Miettinen, A A1 Vuorinen, P YR 1999 UL http://sti.bmj.com/content/75/1/76.1.abstract