Department of Human Anatomy;
Histology;
and Embryology;
Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)and State Key Laboratory of Natural and Biomimetic Drugs;
School of Basic Medical Sciences;
Peking University Health Science Center;
Beijing 100191;
Department of Pathology;
School of Basic Medical Sciences;
Peking University Health Science Center;
Beijing 100191;