New Implant Device Appears to Block Strokes By LAURAN NEERGAARD    WASHINGTON (AP) -- A tiny tent-like device implanted into the heart appears to block strokes caused by a common irregular heartbeat, sealing off a spot where dangerous blood clots form, German and U.S. researchers reported Wednesday... 

Which of the following sections of a newspaper would this article likely appear in? World News, Sports, Business, or Science and Technology? 