Institution: | 1. Department of Maxillo-Facial and Plastic Surgery of the Face, Klinikum Steglitz, Free University of West Berlin, Hindenburgdamm 30, 1000, Berlin 45, Federal Republik of Germany 2. Laboratory of Immunobiology, Division of Cancer Biology and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 3. Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA 4. Institute for Medical Microbiology, University of Mainz, Federal Republic of Germany
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