TY - JOUR T1 - When does chest CT require contrast enhancement? JF - Cleveland Clinic Journal of Medicine JO - Cleve Clin J Med SP - 423 LP - 426 DO - 10.3949/ccjm.83a.15037 VL - 83 IS - 6 AU - Camila Piza Purysko AU - Rahul Renapurkar AU - Michael A. Bolen Y1 - 2016/06/01 UR - http://www.ccjm.org/content/83/6/423.abstract N2 - ER -