http://jama.jamanetwork.com/ en-us Wed, 10 Oct 2012 00:00:00 GMT Tue, 01 Jan 2013 00:51:27 GMT Silverchair editor@jama.jamanetwork.com webmaster@jama.jamanetwork.com http://jama.jamanetwork.com/article.aspx?articleID=1377900 Wed, 10 Oct 2012 00:00:00 GMT Mitka M. <span class="paragraphSection">A federal agency's effort to reduce cases of black lung disease among coal miners by tightening standards on mine dust levels is based on sound science, according to a report by the Government Accountability Office (GAO). The GAO report, released August 17, may help clear the way for the Mine Safety and Health Administration (MSHA) to reduce the permissible exposure limit to coal dust from 2.0 mg/m³ to 1.0 mg/m³.</span> 308 14 1421 1421 10.1001/jama.2012.13442 http://jama.jamanetwork.com/article.aspx?articleID=1377900