PT - JOURNAL ARTICLE AU - Littmann, Laszlo TI - Respiratory artifact: A second vital sign on the electrocardiogram AID - 10.3949/ccjm.82a.14134 DP - 2015 Aug 01 TA - Cleveland Clinic Journal of Medicine PG - 488--490 VI - 82 IP - 8 4099 - http://www.ccjm.org/content/82/8/488.short 4100 - http://www.ccjm.org/content/82/8/488.full SO - Cleve Clin J Med2015 Aug 01; 82