| blood cadmium levels in the populations of masan, korea, and miyagi, japan: an inter-regional comparison. | blood samples were collected from factory workers (with no occupational exposure to metals including cadmium) in masan (167 subjects), korea, in 1986, and miyagi prefecture (270 subjects) japan, in 1987. the samples were analyzed for cadmium in a single laboratory by flameless atomic absorption spectrophotometry under strict quality control. the effect of aging was detected in masan and possibly also in miyagi. the effect of smoking was evident among male smokers in miyagi. comparison with findi ... | 1989 | 2741178 |