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. 2003 Apr 1;88(7):1054–1057. doi: 10.1038/sj.bjc.6600843

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Copyright © 2003 Cancer Research UK

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Incidence of invasive cervical cancer over time since the last negative screen, for women with one and two or more preceding negative screenings. The solid line respresents one negative screen and the dashed line represents two or more negative screens (95% CIs are shown).