Abstract
This time, residents (male: 2449, female: 2165, age: 20-39) who lived in 3 areas were studied: the western area of Tono, Nakatsugawa and Ena in Gifu prefecture. A health examination and questionnaire survey was conducted for 3 years between 1983 and 1985 in order to do a comparison study with regard to their living conditions, eating habits, family and medical histories.
Here we report the study.
