Tracheotomy--an expanded role.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000601:surgery; D013223:Statistics as Topic; D014140:Tracheotomy