| Institution: | (1) Department of Molecular Carcinogenesis, Sylvius Laboratories, University of Leiden, P.O. Box 9503, NL-2300 RA Leiden, The Netherlands;(2) Universitätsklinik, Innere Medizin, Hugstetter Strasse 55, D-7800 Freiburg, Federal Republic of Germany;(3) Istituto di Ricerca sulle Talassemie e Anemie Mediterranee — CNR, Cagliari;(4) Istituto di Clinica e Biologia dell'Età Evolutiva, Università degli Studi di Cagliari, Italy;(5) Istituto per le Microcitemie, USL 21, Cagliari, Italy;(6) RWTH, Institut für Mikrobiologie, Pauwelsstrasse, D-5100 Aachen, Federal Republic of Germany;(7) Research Laboratories, Behringwerke AG, P. O. Box 1140, D-3550 Marburg, Federal Republic of Germany;(8) MRC Laboratory of Molecular Biology, CB2 2QH Cambridge, UK |
