[Function-preserving surgery of cancer of the hypopharynx and the cervical esophagus].
D002277:Carcinoma / Q000601:surgery*; D004938:Esophageal Neoplasms / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008722:Methods; D009362:Neoplasm Metastasis; D010610:Pharyngeal Neoplasms / Q000601:surgery*