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Age-specific of HPV infection in hospital-based female population in Zhejiang Province. High-risk HPV types included HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68; Low-risk HPV types included HPV-6,-11, -42, -43 and -44 and unknown-risk types included HPV-53 and -81(equivalent to CP8304). The peak of hr-HPV infection reached 88.8% in 26–30 years old women.
