Does unsuccessful salvage surgery modify the terminal course of patients with squamous carcinomas of the head and neck?
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D005260:Female; D006258:Head and Neck Neoplasms / Q000601:surgery*; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D008875:Middle Aged; D013727:Terminal Care