Affiliation: | 1. Laboratory of Mathematical Chemistry , University "As. Zlatarov" , Bourgas, 8010, Bulgaria;2. Department of Cell and Molecular Biology , Karolinska Institute , Stockholm, S-171 77, Sweden;3. Institute for Environmental Studies , Vrije University , Amsterdam, 1081 HV, The Netherlands;4. Interagency Testing Committee, U.S. EPA (7401) , TSCA , Washington, DC, USA |