[On the incidence of ulcer in emphysema].
D004646:Emphysema; D006801:Humans; D015994:Incidence; D010437:Peptic Ulcer / Q000150:complications*; D011656:Pulmonary Emphysema / Q000150:complications*; D014456:Ulcer
PEPTIC ULCER/complications; PULMONARY EMPHYSEMA/complications