A year ago a friend of mine gave birth to a beautiful baby girl.  Her name was Cora. I am wearing pink today to celebrate Cora's short life. Cora only lived a few short days. She had an undiagnosed heart defect and died unexpectedly in her mother's arms. It is possible that her congenital heart defect (CHD) could have been diagnosed had she had a simple non-invasive pulse oximetry test before