Spurrett, B The inadequacies of instruments used for cervical screening. [electronic resource] - The Australian & New Zealand journal of obstetrics & gynaecology Feb 1989 - 44-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0004-8666 Standard No.: 10.1111/j.1479-828x.1989.tb02875.x doi Subjects--Topical Terms: Adenocarcinoma--diagnosisFalse Negative ReactionsFemaleHumansUterine Cervical Neoplasms--diagnosisVaginal Smears--instrumentation