The present state and problems of mass servey for colorectal cancer on the habitant in Yamaguchi prefecture von KAWAMURA, Susumu, INAMOTO, Yosito, ARIYAMA, Sigemi, TANABE, Mituhiko, KUBO, Yosikazu, KAWANO, Hirosi, SASAYAMA, Teturo, TAKEMOTO, Tadayosi, OKAZAWA, Hirosi, MIZUTA, Minoru, NAKATA, Hutosi, HUZIMOTO, Sigehiro, TAMETIKA, Yosio, MORIMOTO, Sigeto, NAKAO, Tateo

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