Primary study of the utility of transesophageal real-time three-dimensional echocardiography in the diagnosis of atrial septal defect / 中华超声影像学杂志

on,size and the extent structures of atrial septal defect on line.

Researches on the polymorphism of cytochrome P450 2A6 / 中华医学遗传学杂志

Cytochrome P450 2A6(CYP2A6) is known as a major enzyme responsible for C-oxidation of nicotine and 7-hydroxylation of coumarin. The article reviews different alleles of CYP2A6 that have been discovered, their effect on CYP 2A6 activity and the relationship between genetic polymorphism of CYP2A6 and smoking behavior as well as susceptibility of lung and esophageal cancer in different individuals.