Correlation between clinicohistologic staging and extranodal relapse in Hodgkin's disease.
D005500:Follow-Up Studies; D006689:Hodgkin Disease / Q000188:drug therapy / Q000532:radiotherapy*; D006801:Humans; D008722:Methods; D009362:Neoplasm Metastasis / Q000453:epidemiology*; D009928:Organ Specificity; D011379:Prognosis; D013997:Time Factors