title: [Risk factors for postoperative pulmonary complications; a retrospective multivariate discriminant analysis study].
mesh_terms: D000704:Analysis of Variance; D004938:Esophageal Neoplasms / Q000601:surgery*; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology; D011379:Prognosis; D012189:Retrospective Studies; D012306:Risk