[Postoperative complications of malignant tumors of the head and neck--with reference to cases of gastric hemorrhage].
D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms / Q000601:surgery*; D008875:Middle Aged; D010610:Pharyngeal Neoplasms / Q000601:surgery*; D011183:Postoperative Complications