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.
The following is a complete telephone area codes list of the United States. The map and locations information is available by clicking the specific area code link or click here to view the entire U.S. area code map.The area codes of 800, 888, 877, 866, 855, 844, 833 and 822 are toll free numbers.he following is a complete telephone area codes list of the United States. The map and locations information is available by clicking the specific area code link or click here to view the entire U.S. area code map.