[Time element and clustering of osteogenic sarcoma of the upper and lower extremities].
D000293:Adolescent; D000328:Adult; D000368:Aged; D001132:Arm; D001859:Bone Neoplasms / Q000401:mortality*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005843:Geography; D006801:Humans; D007223:Infant; D007564:Japan; D007866:Leg; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000401:mortality*; D013997:Time Factors