Affiliation: | (1) International Institute of Genetics and Biophysics, CNR, Via Marconi 10, 80125 Naples, Italy;(2) Institute of Normal and Pathologic Cytomorphology, CNR, Bologna, Italy;(3) Institute of Normal Human Anatomy, University of Bologna, Italy;(4) Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, USA |