Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Study: J amp;J neck stent is as effective as surgery Johnson  amp; Johnson's neck stent is as effective as surgery in clearing blocked blood vessels to the brain that can cause strokes and death, according to a company-funded study in tomorrow's New England Journal of Medicine.

Business