Commotio cordis is defined as a cardiac concussion with significant electrical disturbance when force is applied to the thorax during a vulnerable phase of ventricular repolarization. Commotio Cordis is the second highest cause of death in athletes.
As of June 1, 2013, there are 293 area codes in service in the 50 states, plus 1 for DC and 6 for various external territories of the United States (Puerto Rico, U.S. Virgin Iâ¦slands, Guam, American Samoa, and the Northern Mariana Islands), plus 10 more that are scheduled to be added in the coming months.
Pages in category Area codes in the United States. The following 200 pages are in this category, out of 282 total. This list may not reflect recent changes (learn more).