Epidemiological studies on the asso- ciation between the low mortality rate of cancer in Nagano Prefecture and agricultural products
Studies on the association between lifestyle, dietary factors and polymorphisms, and gastric and colorectal cancers (Joint research with Hokushin General Hospital, Shinonoi General Hospital, Nagano Matsushiro General Hospital, Saku Central Hospital, and Nagano Prefectural Research Institute of Rural Industry).