by Hu, Jinfu, La Vecchia, Carlo, Negri, Eva, Chatenoud, Liliane, Bosetti, Cristina, Jia, Xiuyan, Liu, Ruizhang, Huang, Guirong, Bi, Danzhou, Wang, Chaoxu
Published in International journal of cancer (31.03.1999)

by Hu, J, Johnson, K C, Mao, Y, Guo, L, Zhao, X, Jia, X, Bi, D, Huang, G, Liu, R
Published in Cancer detection and prevention (1998)

by Hu, Jinfu, Little, Julian, Xu, Tan, Zhao, Xigong, Guo, Lihong, Jia, Xiuyan, Huang, Guirong, Bi, Danzhou, Liu, Ruizhang
Published in International journal of cancer (29.10.1999)