[CHORDOMA].
D000293:Adolescent; D002648:Child; D002817:Chordoma; D005853:Geriatrics; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D012445:Sacrococcygeal Region
ADOLESCENCE; CHILD; CHORDOMA; GERIATRICS; NEOPLASM RADIOTHERAPY; SACROCOCCYGEAL REGION
CHORDOM.