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A comparison of vaccine efficacy against targeted HPV type-related (purple bars) and all cervical precancer (CIN2, CIN3, or AIS) (orange bars) by 2vHPV [27], and 4vHPV [28], for the HPV-naive populations (TVC-naive and ATP, respectively) and the entire vaccinated cohort (TVC and ITT, respectively). TVC, Total vaccine cohort; ATP, attention to protocol; ITT, intention to treat.
