"This study was conducted to examine potential gains in life expectancies when the three leading causes of death were partially or totally eliminated, based on the mortality situation during 1978-79 in [the Republic of] Korea.  It sought to ascertain what potential gains in longevity might be reasonably achieved through efforts to reduce mortality due to accidents and adverse effects, diseases of [the] circulatory system and malignant neoplasms."  In addition, the authors attempt to determine the range of potential gains that can be expected during the total life span of an individual.  (summary in ENG)