1. Department
of Analytical Chemistry, Stockholm University, Svante Arrhenius väg 16 SE-106
91, Stockholm, Sweden
2. Unit
of Biochemical Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Box 210, SE-171 77 Stockholm, Sweden
3. Unit
of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Box 210, SE-171 77 Stockholm, Sweden
4. Faculty
of Technology, State University of Campinas (Unicamp), Limeira, Sao Paulo 13083, Brazil
5. Institute
of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Diadema, Sao Paulo 09972-270, Brazil