Two mass-food poisonings called Yusho and Yucheng occurred in Japan and Taiwan in 1968 and 1979, respectively. Blood samples from five Yusho patients and three Yucheng patients were collected several times from 1982 to 1998 and from 1980 to 1995, respectively, and analyzed for polychlorinated
Two mass-food poisonings called Yusho and Yucheng occurred in Western Japan and Taiwan in 1968 and 1979, respectively. Blood samples from 5 Yusho patients and 3 Yucheng patients were collected several times from 1982 to 1998 and from 1980 to 1995, respectively, and analyzed for PCB and PCDF