CNN Fareed Zakaria GPS March 15, 2015 14:15:00
>> breathe. >> only the right sized heart with the right blood type will do. even though she's in the top priority category for a transplant she's been waiting for months. >> this is one thing that attacks every single emotion you have in your body. fear, anxiety, every day. >> hi. >> hey, ella. how are you? >> thousands of americans like ella are on the national waiting list for a heart, according to the u.s. government. even if they get one, their bodies may reject it. but what if doctors could manufacture a heart with a patient's own cells using a 3-d printer? that new machine that makes ev...