Individual and joint impact of family history and Helicobacter pylori infection on the risk of stomach cancer: A nested case-control study

H. Yatsuya, H. Toyoshima, A. Tamakoshi, S. Kikuchi, K. Tamakoshi, T. Kondo, T. Mizoue, N. Tokui, Y. Hoshiyama, K. Sakata, N. Hayakawa, T. Yoshimura