title: Postoperative pulmonary complications--a prospective study in the tropics.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000328:Adult; D000367:Age Factors; D000368:Aged; D000768:Anesthesia, General; D001835:Body Weight; D001991:Bronchitis / Q000209:etiology; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009892:Opium; D010998:Pleurisy / Q000209:etiology; D011014:Pneumonia / Q000209:etiology; D011183:Postoperative Complications; D001261:Pulmonary Atelectasis / Q000209:etiology; D012737:Sex Factors; D012907:Smoking; D013997:Time Factors; D014330:Tropical Medicine
chemical_list: D009892:Opium