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Over the last century the male sperm count has been gradually falling. Nobody knows the reason. Today the numbers of infertile men are much higher than it was during the last decade. The rec...
Human papillomavirus (HPV) is one of the most common causes of sexually transmitted infection (STI) in the world. More than 100 different types of HPV exist, most of which are harmless. HPV ...
Condoms originally invented for preventing pregnancies have recently also been under intense scrutiny to look at their role in protection against sexually transmitted diseases (e.g. Gonorrh...
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