1. Laboratory for DNA Repair and DNA Methylation in Chemical Carcinogenesis
2. Laboratory for Papillomavirus Biology, Institute of MolecularCell Biology, Singapore 117609, Singapore
3. Ludwig Institute for Cancer Research, Sao Paulo, Brazil
4. Department of Molecular Genetics and Microbiology, University of New Mexico, Albuquerque, New Mexico 87131-6276
5. Department of Molecular Biology and Biochemistry, University of California—Irvine, Irvine, California 92697-3900