Objective: to establish a sensitive and special method of double mono-cloned antibody for examining the circular immune complex (CIC) in blood, and to further probe the relation between CIC of chlamydia pneumoniae (Cpn) and the coronary heart disease.

• 目的：建立一种敏感而且特异的双抗体夹心法检测血液中的循环免疫复合物(CIC)，并讨论血液中肺炎衣原体(Cpn)CIC与冠心病的关系。