Coronary heart disease is a common and frequently encountered disease in clinical medicine. It belongs to the category of "thoracic obstruction", "heartache", "ture heartache" and "jue heartache" in traditional Chinese medicine. The most common type of coronary disease in clinical is syndrome of blood stasis due to qi deficiency. Professor Huang Zhengde established the benefiting qi for nourishing yin and promoting blood circulation method as the basic treatment based on years of his clinical experience and origi- nates the modified Dan...