Figure 4From: Rationale and design of a multicenter prospective cohort study for the eVALuation and monitoring of HPV infections and relATEd cervical diseases in high-risk women (VALHIDATE study) Algorithm for the screening and follow-up of 1318P. 1318P: young girls aged 13–18 years asking for a paediatric assessment of any health problem. HPV testing: Nucleic acid extraction from cervical samples (by NucliSENS® EasyMAG™, bioMérieux bv, France) followed by PCR amplification of a 450-base pair fragment of ORF L1 using the degenerate primer pair ELSI-f and ELSI-r.Back to article page