American Heart Association
American Heart Association: Conditions: Heart Attack: Symptoms and Diagnosis
Read a general overview of heart attacks and heart pain, including angina. Content includes information on the difference between stable and unstable angina, and the symptoms of a heart attack.
American Association for Clinical Chemistry
Lab Tests Online: Angina Pectoris
What is angina pectoris? What kind of tests are given to diagnosis it? What is the treatment for it? These are the questions answered clearly and concisely on this informative site.