MurcianoD, AubierM, LecocguicY, . Effects of theophylline on diaphragmatic strength and fatigue in patients with chronic obstructive pulmonary disease. N Engl J Med1984;311:349–353.
2.
SacknerMA. Effect of respiratory drugs on mucociliary clearance. Chest1978 (suppl);73:958–966.
3.
Nocturnal oxygen therapy trial group. Continuous or nocturnal oxygen therapy in hypoxemic obstructive lung disease. Ann Intern Med1980;93:391–398.
4.
MotleyHL. Effects of slow deep breathing on blood gas exchange in emphysema. Am Rev Respir Dis1963;88:484–492.
LeithDE, BradleyM.Ventilatory muscle strength and endurance training. J Appl Physiol1976;41:508–516.
9.
PardyRL, RivingtonRN, DespasPJ, . Inspiratory muscle training compared with physiotherapy in patients with chronic airflow limitation. Am Rev Respir Dis1981;123:421–425.
10.
BelmanMJ, MittmanC.Ventilatory muscle training improves exercise capacity in chronic obstructive pulmonary disease patients. Am Rev Respir Dis1980;121:273–280.
11.
HeymsfieldSB, HeadCA, McManusCB, . Respiratory, cardiovascular, and metabolic effects of enteral hyperali-mentation: Influence of formula dose and composition. Am J Clin Nutr1984;40:116–130.
12.
GarfinkelF, RobinsonS, PriceC.Nutrition case management: Carbohydrate feeding and ventilatory insufficiency. Clin Nutr Newsletter1983;June:3–4.
13.
AubierM, MurcianoD, LecocguicY, . Effect of hypophosphatemia on diaphragmatic contractility in patients with acute respiratory failure. N Engl J Med1985;313:420–424.
14.
AgustiAGN, TorresA, EstopaR, . Hypophosphatemia as a cause of failed weaning: The importance of metabolic factors. Crit Care Med1984;12:142–143.