Authors: Tadatoshi Takayama, Teruaki Sekine, Masatoshi Makuuchi, Susumu Yamasaki, Tomoo Kosuge, Junji Yamamoto, Kazuaki Shimada, Michiie Sakamoto, Setsuo Hirohashi, Yasuo Ohashi, Tadao Kakizoe - The Lancet 2000 cited by 848