TY - BOOK AU - Chawla Anjali AU - University of Delhi. Faculty of Medical Sciences. Department of Anaesthesiology ED - University of Delhi. Faculty of Medical Sciences. Department of Anaesthesiology TI - Study of efficacy of non invasive positive pressure ventilation in patients with acute respiratory failure due to chronic obstructive pulmonary disease. (Supervisor : Dr. Manohar Lal) PY - 2000/// KW - ANESTHETICS ER -