Peng Lihua, Qin Xiaoqun, Tan Yurong, Xiang Yang, Liu Huijun. Influence of intrapulmonary regulatory peptides on the expressions of HLA--DR,CD80 and CD86 in human bronchial epithelial cells. Acta Physiol Sin 2008; 60 (6): 723-729 (in Chinese with English abstract).