RT Journal Article SR Electronic T1 Describing a complex and changing landscape: metrics for understanding and planning chlamydia control JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 170 OP 170 DO 10.1136/sextrans-2015-052277 VO 92 IS 3 A1 Sarah C Woodhall A1 John Saunders YR 2016 UL http://sti.bmj.com/content/92/3/170.abstract AB