1. Institute of Anatomy; Medical Academy Magdeburg; Leipziger Str. 44 DDR-3090 Magdeburg G.D.R.
2. Department of Clinical Immunology; Medical Clinics; Leipziger Str. 44 DDR-3090 Magdeburg G.D.R.
3. Institute of Pathology; Medical Academy Magdeburg; Leipziger Str. 44 DDR-3090 Magdeburg G.D.R.