RT Journal Article SR Electronic T1 Water soluble gel lubricant on vaginal speculums had no effect on cervical cytology results JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 78 OP 78 DO 10.1136/ebm.8.3.78 VO 8 IS 3 YR 2003 UL http://ebm.bmj.com/content/8/3/78.abstract AB