An echocardiogram (also called an echo) is a type of ultrasound test that uses high-pitched sound waves that are sent through a device called a transducer.
Follow the above dialing format while making a call From Australia to United States. 1  0011 - Exit code for Australia, and is needed for making any international call from Australia. 2  1 - ISD Code or Country Code of United States. 3  Area code-There are 291 area codes in United States.
If your country is not listed please click here to contact the U.S. Consumer Affairs, they will direct your comments to the appropriate department. 1  Argentina : (Pay Line) 0-810-444-0057. 2  Australia: 1-800-802-307.