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Figure 3: Modified intention-to-treat meta-analysis of clinically important outcomes in selected studies of prophylactic vaccination against human papillomavirus (HPV)-related infection and disease. (Modified intention-to-treat analyses included study participants who received at least 1 dose of vaccine and who either were negative for relevant HPV types at enrolment [Harper, Villa, PATRICIA] or were randomly assigned to study group irrespective of their baseline HPV status [Mao, FUTURE I, FUTURE II].) CIN = cervical intraepithelial neoplasia.
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