1. Volume 355, Issue 9222, Pages 2189-2193 (June 2000)
Viral load of human papilloma virus 16 as a determinant for development of cervical carcinoma in situ: a nested case-control study 
Agnetha M Josefsson, PhD, Patrik KE Magnusson, PhD, Nathalie Ylitalo, MD, Per Sørensen, MSc, Pernilla Qwarforth-Tubbin, Prof Per Kragh Andersen, PhD, Prof Mads Melbye, MD, Prof Hans-Olov Adami, MD, Prof Ulf B Gyllensten, PhD 
The Lancet 
Volume 355, Issue 9222, Pages (June 2000)
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2. Figure 1 HPV 16 Ct values for case and control smears
HPV 16 Ct values were separated into eight groups; mid-group values are shown.
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3. Figure 2
HPV 16 Ct values and distribution of β-actin Ct values for case and control smears by calendar year of preparation of smears
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4. Figure 3
Positive predictive value at different quintiles of distribution of HPV 16 Ct values
Results presented are for women with a first smear diagnosed in 1970–74, but similar results were obtained for the other calendar periods. Categories of HPV 16 HPV 16 Ct values are as in table 3. Analyses are for smears with high amounts of nuclear DNA (⩾34·78 β-actin Ct).
The Lancet  , DOI: ( /S (00) )
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