A new type of heart valve made with cow tissue was hailed as a major breakthrough that could eliminate the need for open-heart surgery in some patients, U.S. doctors said.
Source: http://www.cosmosmagazine.com/news/4190/cow-valve-heart-implant-hailed-breakthrough
Jennifer Garner Jennifer Gimenez Jennifer Love Hewitt Jennifer Morrison Jennifer ODell Jennifer Scholle Jennifer Sky
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