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  Indian J Med Microbiol
 

Figure 3: Subgroup analysis of the risk difference between HPV and penile cancer in different continents. (a) Subgroup analysis of the risk difference between HPV and penile cancer in Latin America. (b) Subgroup analysis of the risk difference between HPV and penile cancer in Europe. (c) Subgroup analysis of the risk difference between HPV and penile cancer in Asia. HPV: human papillomavirus; CI: confidence interval; SE: standard error; IV: inverse variance methods; df: degree of freedom.

Figure 3: Subgroup analysis of the risk difference between HPV and penile cancer in different continents. (a) Subgroup analysis of the risk difference between HPV and penile cancer in Latin America. (b) Subgroup analysis of the risk difference between HPV and penile cancer in Europe. (c) Subgroup analysis of the risk difference between HPV and penile cancer in Asia. HPV: human papillomavirus; CI: confidence interval; SE: standard error; IV: inverse variance methods; df: degree of freedom.