*2.1.3 Clinical diagnostic criteria*

Angina pectoris: In the diagnosis of CAD, angina is the most important clinical symptom to help with diagnosis, although chest pain has many different causes, so it is necessary to distinguish whether chest pain is caused by coronary heart disease or not. Typical chest pain includes the following characteristics:


*Molecular Histopathology and Cytopathology in Cardiovascular Diseases DOI: http://dx.doi.org/10.5772/intechopen.110503*

