Male birth control hasn't progressed since condoms and vasectomies were devised more than 100 years ago. And while the idea of using therapeutic ultrasound to zap sperm has been kicked around for decades, it has never been sufficiently reliable for contraception.
Who Voted for this Story
Negeriku Adalah Social Bookmark Indonesia bagi blogger Indonesia untuk sharing berita juga cerita dan promosikan web, blog di dofollow SB ini