PT - JOURNAL ARTICLE AU - Ruan, Sheng-Yuan AU - Jerng, Jih-Shuin TI - Chest tightness and mediastinal widening AID - 10.1503/cmaj.080737 DP - 2008 Jul 29 TA - Canadian Medical Association Journal PG - 255--256 VI - 179 IP - 3 4099 - http://www.cmaj.ca/content/179/3/255.short 4100 - http://www.cmaj.ca/content/179/3/255.full SO - CMAJ2008 Jul 29; 179