Institution: | (1) Abteilung Humangenetik der Universität Ulm, Oberer Eselsberg, D-7900 Ulm, Germany;(2) Laboratory of Tumor Virus Genetics, National Cancer Institute, National Institutes of Health, 20014 Bethesda, MD, USA;(3) Laboratory of General and Comparative Biochemistry, National Institute of Mental Health, National Institutes of Health, 20014 Bethesda, MD, USA |