[Early discovery and nursing of adverse effects associated with administration of massive dosages of MTX].
D000293:Adolescent; D001859:Bone Neoplasms / Q000188:drug therapy / Q000451:nursing*; D006801:Humans; D008297:Male; D008508:Medication Errors; D008727:Methotrexate / Q000506:poisoning*; D012516:Osteosarcoma / Q000188:drug therapy / Q000451:nursing*
D008727:Methotrexate