AU - Mitka M TI - CLean air standards PT - JOUR DP - 2012 TA - JAMA pages = {553}, VI - 307 IP - 6 AID - 10.1001/jama.2012.91 [doi] 4100 - http://dx.doi.org/10.1001/jama.2012.91 SO - JAMA February 8, 2012 307(6):553