title: Environmental pollution by trichloroethylene and tetrachloroethylene: a nationwide survey.
mesh_terms: D004784:Environmental Monitoring; D006801:Humans; D007564:Japan; D013750:Tetrachloroethylene; D014241:Trichloroethylene; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D014881:Water Supply
chemical_list: D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D014241:Trichloroethylene; D013750:Tetrachloroethylene