title: Erythropoietin levels in patients with Wilms' tumor. Follow-up evaluation.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004921:Erythropoietin / Q000032:analysis / Q000652:urine*; D005500:Follow-Up Studies; D006801:Humans; D007503:Iron Isotopes; D007680:Kidney Neoplasms / Q000097:blood / Q000188:drug therapy / Q000532:radiotherapy / Q000652:urine; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis; D009392:Nephrectomy; D013997:Time Factors; D009396:Wilms Tumor / Q000097:blood / Q000175:diagnosis / Q000188:drug therapy / Q000532:radiotherapy / Q000652:urine*
chemical_list: D007503:Iron Isotopes; D004921:Erythropoietin