Estimating the prevalence of non-cervical human papillomavirus infection in mainland China (PROGRESS-Plus): protocol of a national cross-sectional study.
BMJ open(2023)
摘要
The study protocol and all required documents have been submitted for review and approval to the Independent Ethics Committees of all the participating sites. All participants will provide their written informed consent on study entry, and all the recorded data will be treated as confidential.
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关键词
Epidemiology,INFECTIOUS DISEASES,PREVENTIVE MEDICINE,Public health
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