Effect of nasogastric feedings on arterial oxygen tension in patients with symptomatic chronic obstructive pulmonary disease.
D004750:Enteral Nutrition / Q000009:adverse effects*; D005526:Food, Formulated; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D008173:Lung Diseases, Obstructive / Q000097:blood / Q000628:therapy*