[1] Linkoping Univ Hosp, Div Clin Tumorimmunol, S-58185 Linkoping, Sweden
[2] Linkoping Univ Hosp, Dept Oncol, S-58185 Linkoping, Sweden
[3] Linkoping Univ Hosp, Dept Surg, S-58185 Linkoping, Sweden
[4] Linkoping Univ Hosp, Dept Pathol & Cytol, S-58185 Linkoping, Sweden