Personal resume: Zhang Xiaohang, female, born in October 1972, graduated from Chongqing Medical University with a bachelor's degree. She began working in July 1994, and is currently a chief physician, the director of the Chongqing Association of Ultrasound in Medicine and Engineering of the Chinese Medical Association and a member of the Editorial Board of the Journal of Ultrasound in Clinical Medicine. 

Medical treatment field and expertise: She has been engaged in ultrasound diagnosis for 21 years, and has rich clinical experience in ultrasound diagnosis of fetal structural abnormalities, ultrasound diagnosis of obstetrics and gynecology, and diagnosis and treatment of liver ultrasound contrast. 

Participation topics, published papers and monographs: She has hosted or participated in four projects and published eight papers, including five CSCD core papers. She has participated in the compilation of "Birth Defect Prevention and Reproduction".