L. Chunhong

Adolescent smoking in Wuhan, China: baseline data from the Wuhan Smoking Prevention Trial.

S. Azen, J. Unger, C. Chou, 2001, American journal of preventive medicine.

Collection of buccal cell DNA in seventh-grade children using water and a toothbrush.

S. London, T. Lehman, L. Dubeau, 2001, Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.