From: Prevalence of human papillomavirus in young Italian women with normal cytology: how should we adapt the national vaccination policy?
Age-class (years)
Milan
Genoa
Turin
Total
16-17
2
25
0
27
18-20
247
70
59
376
21-23
17
41
47
105
24-26
15
20
23
58
281
156
129
566