Superhigh-dosage chemotherapy with the transplantation of autologous hemopoietic precursor cells in patients with a prognostically unfavorable relapse and resistant course of lymphogranulomatosis | Sverkhvysokodoznaia khimioterapiia s transplantatsiei autologichnykh kletok predshestvennikov gemopoéza u bol'nykh s prognosticheski neblagopriiatnym retsidivom i rezistentnym techeniem limfogranulematoza