RT Journal Article SR Electronic T1 A comparison of four cytological sampling techniques in a genitourinary medicine clinic. JF Genitourinary Medicine JO Genitourin Med FD BMJ Publishing Group Ltd SP 439 OP 443 DO 10.1136/sti.66.6.439 VO 66 IS 6 A1 A Szarewski A1 J Cuzick A1 M Nayagam A1 R N Thin YR 1990 UL http://sti.bmj.com/content/66/6/439.abstract AB Four cytological sampling techniques (the Ayre's spatula alone, the Ayelesbury spatula, the Ayre's spatula in conjunction with a Cytobrush (Medscand), and the Cervex (Steriseal] were compared when used in a genitourinary medicine clinic. Over a period of two years 6991 smears were taken. No difference was found between the methods with regard to detection of dyskaryosis, although there were significant differences in the percentage of smears containing endocervical cells.