Prognostic relevance of NG2/CSPG4, CD44 and Ki-67 in patients with glioblastoma oleh Alexandra Y Tsidulko, Galina M Kazanskaya, Diana V Kostromskaya, Svetlana V Aidagulova, Roman S Kiselev, Alexandr M Volkov, Vyacheslav V Kobozev, Alexei S Gaitan, Alexei L Krivoshapkin, Elvira V Grigorieva