Effectiveness of HPV vaccine by age at vaccination and number of doses: protocol for a population-based matched case–control study
Introduction In 2006, the first human papillomavirus (HPV) vaccine was approved by the Food and Drug Administration in the USA based on pre-licensure clinical trials that found it to be highly efficacious at preventing persistent infection and precancerous, high-grade cervical lesions (HGCLs) caused...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMJ Publishing Group
2021-04-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/11/4/e043093.full |
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