Environmental Health: a Global Access Science Source Inter-population Variations in Concentrations, Determinants of and Correlations between 2,2',4,4',5,5'-hexachlorobiphenyl (cb-153) and 1,1-dichloro-2,2-bis (p-chlorophenyl)-ethylene (p,p'-dde): a Cross-sectional Study of 3161 Men and Women from In