Kono, Shigemi Mortality trends in Japan : why has the Japanese life expectancy kept on increasing / Shigemi Kono - Tokyo : Ministry of Health & Welfare (MHW) , 1989 - 22p. : ill. ; 30 cm. - IPP working paper No. 1 . Includes bibliographical references. Subjects--Topical Terms: Mortality--Japan Gov. Doc. Class. No.: JP MHW IPP WP-1