The issue has been controversial because a number of earlier studies of condoms and human papillomavirus produced conflicting findings about the degree of protection that condoms offered women.

• 这篇文章是有争议的，因为在避孕套对于妇女的保护程度方面，之前的许多对于避孕套和人乳头瘤的研究产生了许多相互矛盾的发现。