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. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Epidemiol Infect. 2015 Apr;143(5):1042–1047. doi: 10.1017/S0950268814001538

Fig. 2 — Infection rates over time by human papillomavirus (HPV) type. Infection rates by HPV type are defined as the number of new positive infections per total number of women tested within a 3-month period. Changes over time are represented by Lowess smoothing curves (solid black line). (a) Younger women (21–30 years); (b) older women (31–64 years).

Fig. 2 — Infection rates over time by human papillomavirus (HPV) type. Infection rates by HPV type are defined as the number of new positive infections per total number of women tested within a 3-month period. Changes over time are represented by Lowess smoothing curves (solid black line). (a) Younger women (21–30 years); (b) older women (31–64 years).