The ventilatory function of sternomastoid and scalene muscles in patients with pulmonary emphysema.
D000328:Adult; D004576:Electromyography; D006801:Humans; D007366:Intercostal Muscles / Q000503:physiopathology*; D008875:Middle Aged; D009119:Muscle Contraction; D009132:Muscles / Q000503:physiopathology*; D011656:Pulmonary Emphysema / Q000503:physiopathology*; D012119:Respiration; D012146:Rest; D013147:Spirometry; D013997:Time Factors