China's Number of Scientific Papers On the Upswing

Based upon a recent study, "Knowledge, Network, and Nations," the number of scientific papers issued in China has dramatically increased over the last ten years, leading the authors to opine that China could "overtake the US in science" by as early as 2013.  However, on the "citation index" (the citation of scientific papers by other researchers), the US is still at number one, followed by the United Kingdom.  http://www.bbc.co.uk/news/science-environment-12885271