[1] Univ Kiel, Dept Oral & Maxillofacial Surg, D-24105 Kiel, Germany
[2] Univ Kiel, Dept Pathol, Hematopathol Sect, D-24105 Kiel, Germany
[3] Univ Kiel, Lymph Node Registry, D-24105 Kiel, Germany
[4] Univ Kiel, Dept Gen Med, Stem Cell & Immune Therapy Sect, D-24105 Kiel, Germany
[5] Univ Kiel, Dept Oral & Maxillofacial Surg, D-24105 Kiel, Germany