review 1998 The laboratory investigation of vaginal discharge Journal of clinical pathology ·doi:10.1136/jcp.51.8.564
other 1992 Pelvic inflammatory disease British journal of obstetrics and gynaecology ·doi:10.1111/j.1471-0528.1992.tb13693.x
other 1990 Management of pelvic inflammatory disease International journal of STD & AIDS ·doi:10.1177/095646249000100602